essay about major depression

Essays About Depression: Top 8 Examples Plus Prompts

Many people deal with mental health issues throughout their lives; if you are writing essays about depression, you can read essay examples to get started.

An occasional feeling of sadness is something that everyone experiences from time to time. Still, a persistent loss of interest, depressed mood, changes in energy levels, and sleeping problems can indicate mental illness. Thankfully, antidepressant medications, therapy, and other types of treatment can be largely helpful for people living with depression.

People suffering from depression or other mood disorders must work closely with a mental health professional to get the support they need to recover. While family members and other loved ones can help move forward after a depressive episode, it’s also important that people who have suffered from major depressive disorder work with a medical professional to get treatment for both the mental and physical problems that can accompany depression.

If you are writing an essay about depression, here are 8 essay examples to help you write an insightful essay. For help with your essays, check out our round-up of the best essay checkers .

• 1. My Best Friend Saved Me When I Attempted Suicide, But I Didn’t Save Her by Drusilla Moorhouse
• 2. How can I complain? by James Blake
• 3. What it’s like living with depression: A personal essay by Nadine Dirks
• 4. I Have Depression, and I’m Proof that You Never Know the Battle Someone is Waging Inside by Jac Gochoco
• 5. Essay: How I Survived Depression by Cameron Stout
• 6. I Can’t Get Out of My Sweat Pants: An Essay on Depression by Marisa McPeck-Stringham
• 7. This is what depression feels like by Courtenay Harris Bond

8. Opening Up About My Struggle with Recurring Depression by Nora Super

1. what is depression, 2. how is depression diagnosed, 3. causes of depression, 4. different types of depression, 5. who is at risk of depression, 6. can social media cause depression, 7. can anyone experience depression, the final word on essays about depression, is depression common, what are the most effective treatments for depression, top 8 examples, 1.  my best friend saved me when i attempted suicide, but i didn’t save her  by drusilla moorhouse.

“Just three months earlier, I had been a patient in another medical facility: a mental hospital. My best friend, Denise, had killed herself on Christmas, and days after the funeral, I told my mom that I wanted to die. I couldn’t forgive myself for the role I’d played in Denise’s death: Not only did I fail to save her, but I’m fairly certain I gave her the idea.”

Moorhouse makes painstaking personal confessions throughout this essay on depression, taking the reader along on the roller coaster of ups and downs that come with suicide attempts, dealing with the death of a loved one, and the difficulty of making it through major depressive disorder.

2.  How can I complain?  by James Blake

“I wanted people to know how I felt, but I didn’t have the vocabulary to tell them. I have gone into a bit of detail here not to make anyone feel sorry for me but to show how a privileged, relatively rich-and-famous-enough-for-zero-pity white man could become depressed against all societal expectations and allowances. If I can be writing this, clearly it isn’t only oppression that causes depression; for me it was largely repression.”

Musician James Blake shares his experience with depression and talks about his struggles with trying to grow up while dealing with existential crises just as he began to hit the peak of his fame. Blake talks about how he experienced guilt and shame around the idea that he had it all on the outside—and so many people deal with issues that he felt were larger than his.

3.  What it’s like living with depression: A personal essay   by Nadine Dirks

“In my early adulthood, I started to feel withdrawn, down, unmotivated, and constantly sad. What initially seemed like an off-day turned into weeks of painful feelings that seemed they would never let up. It was difficult to enjoy life with other people my age. Depression made typical, everyday tasks—like brushing my teeth—seem monumental. It felt like an invisible chain, keeping me in bed.”

Dirks shares her experience with depression and the struggle she faced to find treatment for mental health issues as a Black woman. Dirks discusses how even though she knew something about her mental health wasn’t quite right, she still struggled to get the diagnosis she needed to move forward and receive proper medical and psychological care.

4.  I Have Depression, and I’m Proof that You Never Know the Battle Someone is Waging Inside  by Jac Gochoco

“A few years later, at the age of 20, my smile had fallen, and I had given up. The thought of waking up the next morning was too much for me to handle. I was no longer anxious or sad; instead, I felt numb, and that’s when things took a turn for the worse. I called my dad, who lived across the country, and for the first time in my life, I told him everything. It was too late, though. I was not calling for help. I was calling to say goodbye.”

Gochoco describes the war that so many people with depression go through—trying to put on a brave face and a positive public persona while battling demons on the inside. The Olympic weightlifting coach and yoga instructor now work to share the importance of mental health with others.

5.  Essay: How I Survived Depression   by Cameron Stout

“In 1993, I saw a psychiatrist who prescribed an antidepressant. Within two months, the medication slowly gained traction. As the gray sludge of sadness and apathy washed away, I emerged from a spiral of impending tragedy. I helped raise two wonderful children, built a successful securities-litigation practice, and became an accomplished cyclist. I began to take my mental wellness for granted. “

Princeton alum Cameron Stout shared his experience with depression with his fellow Tigers in Princeton’s alumni magazine, proving that even the most brilliant and successful among us can be rendered powerless by a chemical imbalance. Stout shares his experience with treatment and how working with mental health professionals helped him to come out on the other side of depression.

6.  I Can’t Get Out of My Sweat Pants: An Essay on Depression  by Marisa McPeck-Stringham

“Sometimes, when the depression got really bad in junior high, I would come straight home from school and change into my pajamas. My dad caught on, and he said something to me at dinner time about being in my pajamas several days in a row way before bedtime. I learned it was better not to change into my pajamas until bedtime. People who are depressed like to hide their problematic behaviors because they are so ashamed of the way they feel. I was very ashamed and yet I didn’t have the words or life experience to voice what I was going through.”

McPeck-Stringham discusses her experience with depression and an eating disorder at a young age; both brought on by struggles to adjust to major life changes. The author experienced depression again in her adult life, and thankfully, she was able to fight through the illness using tried-and-true methods until she regained her mental health.

7.  This is what depression feels like  by Courtenay Harris Bond

“The smallest tasks seem insurmountable: paying a cell phone bill, lining up a household repair. Sometimes just taking a shower or arranging a play date feels like more than I can manage. My children’s squabbles make me want to scratch the walls. I want to claw out of my own skin. I feel like the light at the end of the tunnel is a solitary candle about to blow out at any moment. At the same time, I feel like the pain will never end.”

Bond does an excellent job of helping readers understand just how difficult depression can be, even for people who have never been through the difficulty of mental illness. Bond states that no matter what people believe the cause to be—chemical imbalance, childhood issues, a combination of the two—depression can make it nearly impossible to function.

“Once again, I spiraled downward. I couldn’t get out of bed. I couldn’t work. I had thoughts of harming myself. This time, my husband urged me to start ECT much sooner in the cycle, and once again, it worked. Within a matter of weeks I was back at work, pretending nothing had happened. I kept pushing myself harder to show everyone that I was “normal.” I thought I had a pattern: I would function at a high level for many years, and then my depression would be triggered by a significant event. I thought I’d be healthy for another ten years.”

Super shares her experience with electroconvulsive therapy and how her depression recurred with a major life event despite several years of solid mental health. Thankfully, Super was able to recognize her symptoms and get help sooner rather than later.

7 Writing Prompts on Essays About Depression

When writing essays on depression, it can be challenging to think of essay ideas and questions. Here are six essay topics about depression that you can use in your essay.

Depression can be difficult to define and understand. Discuss the definition of depression, and delve into the signs, symptoms, and possible causes of this mental illness. Depression can result from trauma or personal circumstances, but it can also be a health condition due to genetics. In your essay, look at how depression can be spotted and how it can affect your day-to-day life. 

Depression diagnosis can be complicated; this essay topic will be interesting as you can look at the different aspects considered in a diagnosis. While a certain lab test can be conducted, depression can also be diagnosed by a psychiatrist. Research the different ways depression can be diagnosed and discuss the benefits of receiving a diagnosis in this essay.

There are many possible causes of depression; this essay discusses how depression can occur. Possible causes of depression can include trauma, grief, anxiety disorders, and some physical health conditions. Look at each cause and discuss how they can manifest as depression.

There are many different types of depression. This essay topic will investigate each type of depression and its symptoms and causes. Depression symptoms can vary in severity, depending on what is causing it. For example, depression can be linked to medical conditions such as bipolar disorder. This is a different type of depression than depression caused by grief. Discuss the details of the different types of depression and draw comparisons and similarities between them.

Certain genetic traits, socio-economic circumstances, or age can make people more prone to experiencing symptoms of depression. Depression is becoming more and more common amongst young adults and teenagers. Discuss the different groups at risk of experiencing depression and how their circumstances contribute to this risk.

Social media poses many challenges to today’s youth, such as unrealistic beauty standards, cyber-bullying, and only seeing the “highlights” of someone’s life. Can social media cause depression in teens? Delve into the negative impacts of social media when writing this essay. You could compare the positive and negative sides of social media and discuss whether social media causes mental health issues amongst young adults and teenagers.

This essay question poses the question, “can anyone experience depression?” Although those in lower-income households may be prone to experiencing depression, can the rich and famous also experience depression? This essay discusses whether the privileged and wealthy can experience their possible causes. This is a great argumentative essay topic, discuss both sides of this question and draw a conclusion with your final thoughts.

When writing about depression, it is important to study examples of essays to make a compelling essay. You can also use your own research by conducting interviews or pulling information from other sources. As this is a sensitive topic, it is important to approach it with care; you can also write about your own experiences with mental health issues.

Tip: If writing an essay sounds like a lot of work, simplify it. Write a simple 5 paragraph essay instead.

FAQs On Essays About Depression

According to the World Health Organization, about 5% of people under 60 live with depression. The rate is slightly higher—around 6%—for people over 60. Depression can strike at any age, and it’s important that people who are experiencing symptoms of depression receive treatment, no matter their age. 

Suppose you’re living with depression or are experiencing some of the symptoms of depression. In that case, it’s important to work closely with your doctor or another healthcare professional to develop a treatment plan that works for you. A combination of antidepressant medication and cognitive behavioral therapy is a good fit for many people, but this isn’t necessarily the case for everyone who suffers from depression. Be sure to check in with your doctor regularly to ensure that you’re making progress toward improving your mental health.

If you’re still stuck, check out our general resource of essay writing topics .

Amanda has an M.S.Ed degree from the University of Pennsylvania in School and Mental Health Counseling and is a National Academy of Sports Medicine Certified Personal Trainer. She has experience writing magazine articles, newspaper articles, SEO-friendly web copy, and blog posts.

View all posts

Home — Essay Samples — Nursing & Health — Psychiatry & Mental Health — Major Depressive Disorder

Major Depressive Disorder Essay Examples

Writing an essay on Major Depressive Disorder is important for several reasons. First, it helps to raise awareness about this serious mental health condition. By discussing the symptoms, causes, and treatments of Major Depressive Disorder, you can help to educate others and reduce the stigma surrounding mental illness.

Additionally, writing an essay on this topic can help to provide support and validation for those who are living with Major Depressive Disorder. By sharing personal stories and experiences, you can let others know that they are not alone and that there is hope for recovery.

Furthermore, writing an essay on Major Depressive Disorder can contribute to the body of knowledge on this subject. Researching and synthesizing information from reputable sources can help to expand our understanding of the condition and contribute to the development of more effective treatments.

When writing an essay on Major Depressive Disorder, it's important to approach the topic with sensitivity and empathy. Remember that this is a real and often debilitating condition that affects millions of people worldwide. Use language that is respectful and non-stigmatizing, and consider including resources for those who may be seeking help.

It's also important to support your arguments with evidence from reputable sources, such as peer-reviewed journals, government health agencies, and well-respected organizations in the mental health field. This will help to lend credibility to your essay and ensure that the information you are presenting is accurate and up-to-date.

In conclusion, writing an essay on Major Depressive Disorder is important for raising awareness, providing support, and contributing to our understanding of this condition. By approaching the topic with sensitivity and using evidence-based information, you can create a meaningful and impactful essay that can make a difference in the lives of those affected by Major Depressive Disorder.

What Makes a Good Major Depressive Disorder Essay Topics

When it comes to choosing a topic for an essay on Major Depressive Disorder, it's important to consider the impact of the subject matter. The best topics are those that are not only relevant and thought-provoking, but also have the potential to elicit meaningful discussions and insights. To brainstorm Essay Topics, consider the various aspects of Major Depressive Disorder, such as its causes, symptoms, treatment options, and impact on individuals and society. It's also important to consider the current research and developments in the field, as well as any controversies or debates surrounding the topic. A good essay topic should be specific, focused, and have the potential to contribute to the existing body of knowledge on Major Depressive Disorder.

Best Major Depressive Disorder Essay Topics

• The Role of Genetics in Major Depressive Disorder
• The Impact of Childhood Trauma on the Development of Major Depressive Disorder
• Gender Differences in Major Depressive Disorder
• The Effectiveness of Psychotherapy in Treating Major Depressive Disorder
• Major Depressive Disorder in the Elderly Population
• The Connection Between Major Depressive Disorder and Substance Abuse
• The Stigma Surrounding Major Depressive Disorder
• The Role of Neurotransmitters in Major Depressive Disorder
• Major Depressive Disorder in Adolescents: Warning Signs and Interventions
• The Influence of Social Media on Major Depressive Disorder
• Cultural Differences in the Perception and Treatment of Major Depressive Disorder
• The Impact of Major Depressive Disorder on Work Performance
• The Relationship Between Major Depressive Disorder and Chronic Illness
• The Economic Burden of Major Depressive Disorder
• The Use of Technology in Managing Major Depressive Disorder
• The Role of Family Support in Coping with Major Depressive Disorder
• Holistic Approaches to Treating Major Depressive Disorder
• The Link Between Major Depressive Disorder and Suicide
• The Effect of Exercise on Symptoms of Major Depressive Disorder
• The Future of Treatment for Major Depressive Disorder

Major Depressive Disorder Essay Topics Prompts

• Imagine a world where the stigma surrounding Major Depressive Disorder has been completely eliminated. How would this impact the way individuals seek help and the way society views mental illness?
• Write a personal essay about your experience with Major Depressive Disorder, focusing on the challenges you faced and the strategies you used to cope and recover.
• Create a fictional case study of a character struggling with Major Depressive Disorder, exploring their background, symptoms, and journey to recovery.
• Develop a research proposal for a study investigating the potential link between Major Depressive Disorder and a specific environmental factor, such as air pollution or urbanization.
• Design an awareness campaign aimed at educating the public about the early warning signs of Major Depressive Disorder and the importance of seeking help. Use a creative medium, such as a video, social media campaign, or interactive exhibit, to convey your message.

Addressing Mental Health: Awareness, Support, and Intervention

Social media and college students' performance, mental health, and relationships, made-to-order essay as fast as you need it.

Each essay is customized to cater to your unique preferences

+ experts online

Research on Depression and Working Memory

The effectiveness of cognitive behavioral therapy in the treatment of major depressive disorder, exploration of treatments for major depressive disorders, major depressive disorder and its prevention, let us write you an essay from scratch.

• 450+ experts on 30 subjects ready to help
• Custom essay delivered in as few as 3 hours

Problems, Research and Treatment of Major Depression Disorder

My experience with a patient with depressive disorder, bond between mother and child: effects of maternal depression, relevant topics.

• Mental Health
• Schizophrenia
• Crisis Intervention
• Borderline Personality Disorder

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy . We’ll occasionally send you promo and account related email

No need to pay just yet!

We use cookies to personalyze your web-site experience. By continuing we’ll assume you board with our cookie policy .

• Instructions Followed To The Letter
• Deadlines Met At Every Stage
• Unique And Plagiarism Free

• Patient Care & Health Information
• Diseases & Conditions
• Depression (major depressive disorder)
• What is depression? A Mayo Clinic expert explains.

Learn more about depression from Craig Sawchuk, Ph.D., L.P., clinical psychologist at Mayo Clinic.

Hi, I'm Dr. Craig Sawchuk, a clinical psychologist at Mayo Clinic. And I'm here to talk with you about depression. Whether you're looking for answers for yourself, a friend, or loved one, understanding the basics of depression can help you take the next step.

Depression is a mood disorder that causes feelings of sadness that won't go away. Unfortunately, there's a lot of stigma around depression. Depression isn't a weakness or a character flaw. It's not about being in a bad mood, and people who experience depression can't just snap out of it. Depression is a common, serious, and treatable condition. If you're experiencing depression, you're not alone. It honestly affects people of all ages and races and biological sexes, income levels and educational backgrounds. Approximately one in six people will experience a major depressive episode at some point in their lifetime, while up to 16 million adults each year suffer from clinical depression. There are many types of symptoms that make up depression. Emotionally, you may feel sad or down or irritable or even apathetic. Physically, the body really slows down. You feel tired. Your sleep is often disrupted. It's really hard to get yourself motivated. Your thinking also changes. It can just be hard to concentrate. Your thoughts tend to be much more negative. You can be really hard on yourself, feel hopeless and helpless about things. And even in some cases, have thoughts of not wanting to live. Behaviorally, you just want to pull back and withdraw from others, activities, and day-to-day responsibilities. These symptoms all work together to keep you trapped in a cycle of depression. Symptoms of depression are different for everyone. Some symptoms may be a sign of another disorder or medical condition. That's why it's important to get an accurate diagnosis.

While there's no single cause of depression, most experts believe there's a combination of biological, social, and psychological factors that contribute to depression risk. Biologically, we think about genetics or a family history of depression, health conditions such as diabetes, heart disease or thyroid disorders, and even hormonal changes that happen over the lifespan, such as pregnancy and menopause. Changes in brain chemistry, especially disruptions in neurotransmitters like serotonin, that play an important role in regulating many bodily functions, including mood, sleep, and appetite, are thought to play a particularly important role in depression. Socially stressful and traumatic life events, limited access to resources such as food, housing, and health care, and a lack of social support all contribute to depression risk. Psychologically, we think of how negative thoughts and problematic coping behaviors, such as avoidance and substance use, increase our vulnerability to depression.

The good news is that treatment helps. Effective treatments for depression exist and you do have options to see what works best for you. Lifestyle changes that improve sleep habits, exercise, and address underlying health conditions can be an important first step. Medications such as antidepressants can be helpful in alleviating depressive symptoms. Therapy, especially cognitive behavioral therapy, teaches skills to better manage negative thoughts and improve coping behaviors to help break you out of cycles of depression. Whatever the cause, remember that depression is not your fault and it can be treated.

To help diagnose depression, your health care provider may use a physical exam, lab tests, or a mental health evaluation. These results will help identify various treatment options that best fit your situation.

Help is available. You don't have to deal with depression by yourself. Take the next step and reach out. If you're hesitant to talk to a health care provider, talk to a friend or loved one about how to get help. Living with depression isn't easy and you're not alone in your struggles. Always remember that effective treatments and supports are available to help you start feeling better. Want to learn more about depression? Visit mayoclinic.org. Do take care.

Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems. You may have trouble doing normal day-to-day activities, and sometimes you may feel as if life isn't worth living.

More than just a bout of the blues, depression isn't a weakness and you can't simply "snap out" of it. Depression may require long-term treatment. But don't get discouraged. Most people with depression feel better with medication, psychotherapy or both.

Depression care at Mayo Clinic

Products & Services

• A Book: Mayo Clinic Family Health Book, 5th Edition
• Begin Exploring Women's Health Solutions at Mayo Clinic Store
• Newsletter: Mayo Clinic Health Letter — Digital Edition

Although depression may occur only once during your life, people typically have multiple episodes. During these episodes, symptoms occur most of the day, nearly every day and may include:

• Feelings of sadness, tearfulness, emptiness or hopelessness
• Angry outbursts, irritability or frustration, even over small matters
• Loss of interest or pleasure in most or all normal activities, such as sex, hobbies or sports
• Sleep disturbances, including insomnia or sleeping too much
• Tiredness and lack of energy, so even small tasks take extra effort
• Reduced appetite and weight loss or increased cravings for food and weight gain
• Anxiety, agitation or restlessness
• Slowed thinking, speaking or body movements
• Feelings of worthlessness or guilt, fixating on past failures or self-blame
• Trouble thinking, concentrating, making decisions and remembering things
• Frequent or recurrent thoughts of death, suicidal thoughts, suicide attempts or suicide
• Unexplained physical problems, such as back pain or headaches

For many people with depression, symptoms usually are severe enough to cause noticeable problems in day-to-day activities, such as work, school, social activities or relationships with others. Some people may feel generally miserable or unhappy without really knowing why.

Depression symptoms in children and teens

Common signs and symptoms of depression in children and teenagers are similar to those of adults, but there can be some differences.

• In younger children, symptoms of depression may include sadness, irritability, clinginess, worry, aches and pains, refusing to go to school, or being underweight.
• In teens, symptoms may include sadness, irritability, feeling negative and worthless, anger, poor performance or poor attendance at school, feeling misunderstood and extremely sensitive, using recreational drugs or alcohol, eating or sleeping too much, self-harm, loss of interest in normal activities, and avoidance of social interaction.

Depression symptoms in older adults

Depression is not a normal part of growing older, and it should never be taken lightly. Unfortunately, depression often goes undiagnosed and untreated in older adults, and they may feel reluctant to seek help. Symptoms of depression may be different or less obvious in older adults, such as:

• Memory difficulties or personality changes
• Physical aches or pain
• Fatigue, loss of appetite, sleep problems or loss of interest in sex — not caused by a medical condition or medication
• Often wanting to stay at home, rather than going out to socialize or doing new things
• Suicidal thinking or feelings, especially in older men

When to see a doctor

If you feel depressed, make an appointment to see your doctor or mental health professional as soon as you can. If you're reluctant to seek treatment, talk to a friend or loved one, any health care professional, a faith leader, or someone else you trust.

When to get emergency help

If you think you may hurt yourself or attempt suicide, call 911 in the U.S. or your local emergency number immediately.

Also consider these options if you're having suicidal thoughts:

• Call your doctor or mental health professional.
• Contact a suicide hotline.
• In the U.S., call or text 988 to reach the 988 Suicide & Crisis Lifeline, available 24 hours a day, seven days a week. Or use the Lifeline Chat . Services are free and confidential.
• U.S. veterans or service members who are in crisis can call 988 and then press “1” for the Veterans Crisis Line . Or text 838255. Or chat online .
• The Suicide & Crisis Lifeline in the U.S. has a Spanish language phone line at 1-888-628-9454 (toll-free).
• Reach out to a close friend or loved one.
• Contact a minister, spiritual leader or someone else in your faith community.

If you have a loved one who is in danger of suicide or has made a suicide attempt, make sure someone stays with that person. Call 911 or your local emergency number immediately. Or, if you think you can do so safely, take the person to the nearest hospital emergency room.

More Information

Depression (major depressive disorder) care at Mayo Clinic

• Male depression: Understanding the issues
• Nervous breakdown: What does it mean?
• Pain and depression: Is there a link?

There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form.

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

Error Email field is required

Error Include a valid email address

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

Thank you for subscribing!

You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox.

Sorry something went wrong with your subscription

Please, try again in a couple of minutes

It's not known exactly what causes depression. As with many mental disorders, a variety of factors may be involved, such as:

• Biological differences. People with depression appear to have physical changes in their brains. The significance of these changes is still uncertain, but may eventually help pinpoint causes.
• Brain chemistry. Neurotransmitters are naturally occurring brain chemicals that likely play a role in depression. Recent research indicates that changes in the function and effect of these neurotransmitters and how they interact with neurocircuits involved in maintaining mood stability may play a significant role in depression and its treatment.
• Hormones. Changes in the body's balance of hormones may be involved in causing or triggering depression. Hormone changes can result with pregnancy and during the weeks or months after delivery (postpartum) and from thyroid problems, menopause or a number of other conditions.
• Inherited traits. Depression is more common in people whose blood relatives also have this condition. Researchers are trying to find genes that may be involved in causing depression.
• Marijuana and depression
• Vitamin B-12 and depression

Risk factors

Depression often begins in the teens, 20s or 30s, but it can happen at any age. More women than men are diagnosed with depression, but this may be due in part because women are more likely to seek treatment.

Factors that seem to increase the risk of developing or triggering depression include:

• Certain personality traits, such as low self-esteem and being too dependent, self-critical or pessimistic
• Traumatic or stressful events, such as physical or sexual abuse, the death or loss of a loved one, a difficult relationship, or financial problems
• Blood relatives with a history of depression, bipolar disorder, alcoholism or suicide
• Being lesbian, gay, bisexual or transgender, or having variations in the development of genital organs that aren't clearly male or female (intersex) in an unsupportive situation
• History of other mental health disorders, such as anxiety disorder, eating disorders or post-traumatic stress disorder
• Abuse of alcohol or recreational drugs
• Serious or chronic illness, including cancer, stroke, chronic pain or heart disease
• Certain medications, such as some high blood pressure medications or sleeping pills (talk to your doctor before stopping any medication)

Complications

Depression is a serious disorder that can take a terrible toll on you and your family. Depression often gets worse if it isn't treated, resulting in emotional, behavioral and health problems that affect every area of your life.

Examples of complications associated with depression include:

• Excess weight or obesity, which can lead to heart disease and diabetes
• Pain or physical illness
• Alcohol or drug misuse
• Anxiety, panic disorder or social phobia
• Family conflicts, relationship difficulties, and work or school problems
• Social isolation
• Suicidal feelings, suicide attempts or suicide
• Self-mutilation, such as cutting
• Premature death from medical conditions
• Depression and anxiety: Can I have both?

There's no sure way to prevent depression. However, these strategies may help.

• Take steps to control stress, to increase your resilience and boost your self-esteem.
• Reach out to family and friends, especially in times of crisis, to help you weather rough spells.
• Get treatment at the earliest sign of a problem to help prevent depression from worsening.
• Consider getting long-term maintenance treatment to help prevent a relapse of symptoms.
• Brown AY. Allscripts EPSi. Mayo Clinic, Rochester, Minn. Nov. 17, 2016.
• Research report: Psychiatry and psychology, 2016-2017. Mayo Clinic. http://www.mayo.edu/research/departments-divisions/department-psychiatry-psychology/overview?_ga=1.199925222.939187614.1464371889. Accessed Jan. 23, 2017.
• Depressive disorders. In: Diagnostic and Statistical Manual of Mental Disorders DSM-5. 5th ed. Arlington, Va.: American Psychiatric Association; 2013. http://www.psychiatryonline.org. Accessed Jan. 23, 2017.
• Depression. National Institute of Mental Health. https://www.nimh.nih.gov/health/topics/depression/index.shtml. Accessed Jan. 23, 2017.
• Depression. National Alliance on Mental Illness. http://www.nami.org/Learn-More/Mental-Health-Conditions/Depression/Overview. Accessed Jan. 23, 2017.
• Depression: What you need to know. National Institute of Mental Health. https://www.nimh.nih.gov/health/publications/depression-what-you-need-to-know/index.shtml. Accessed Jan. 23, 2017.
• What is depression? American Psychiatric Association. https://www.psychiatry.org/patients-families/depression/what-is-depression. Accessed Jan. 23, 2017.
• Depression. NIH Senior Health. https://nihseniorhealth.gov/depression/aboutdepression/01.html. Accessed Jan. 23, 2017.
• Children’s mental health: Anxiety and depression. Centers for Disease Control and Prevention. https://www.cdc.gov/childrensmentalhealth/depression.html#depression. Accessed. Jan. 23, 2017.
• Depression and complementary health approaches: What the science says. National Center for Complementary and Integrative Health. https://nccih.nih.gov/health/providers/digest/depression-science. Accessed Jan. 23, 2017.
• Depression. Natural Medicines. https://naturalmedicines.therapeuticresearch.com/databases/medical-conditions/d/depression.aspx. Accessed Jan. 23, 2017.
• Natural medicines in the clinical management of depression. Natural Medicines. http://naturaldatabase.therapeuticresearch.com/ce/CECourse.aspx?cs=naturalstandard&s=ND&pm=5&pc=15-111. Accessed Jan. 23, 2017.
• The road to resilience. American Psychological Association. http://www.apa.org/helpcenter/road-resilience.aspx. Accessed Jan. 23, 2017.
• Simon G, et al. Unipolar depression in adults: Choosing initial treatment. http://www.uptodate.com/home. Accessed Jan. 23, 2017.
• Stewart D, et al. Risks of antidepressants during pregnancy: Selective serotonin reuptake inhibitors (SSRIs). http://www.uptodate.com/home. Accessed Jan. 23, 2017.
• Kimmel MC, et al. Safety of infant exposure to antidepressants and benzodiazepines through breastfeeding. http://www.uptodate.com/home. Accessed Jan. 23, 2017.
• Bipolar and related disorders. In: Diagnostic and Statistical Manual of Mental Disorders DSM-5. 5th ed. Arlington, Va.: American Psychiatric Association; 2013. http://www.psychiatryonline.org. Accessed Jan. 23, 2017.
• Hirsch M, et al. Monoamine oxidase inhibitors (MAOIs) for treating depressed adults. http://www.uptodate.com/home. Accessed Jan. 24, 2017.
• Hall-Flavin DK (expert opinion). Mayo Clinic, Rochester, Minn. Jan. 31, 2017.
• Krieger CA (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 2, 2017.
• Antidepressant withdrawal: Is there such a thing?
• Antidepressants and alcohol: What's the concern?
• Antidepressants and weight gain: What causes it?
• Antidepressants: Can they stop working?
• Antidepressants: Selecting one that's right for you
• Antidepressants: Side effects
• Antidepressants: Which cause the fewest sexual side effects?
• Atypical antidepressants
• Clinical depression: What does that mean?
• Depression in women: Understanding the gender gap
• Depression, anxiety and exercise
• Depression: Supporting a family member or friend
• MAOIs and diet: Is it necessary to restrict tyramine?
• Monoamine oxidase inhibitors (MAOIs)
• Natural remedies for depression: Are they effective?
• Selective serotonin reuptake inhibitors (SSRIs)
• Serotonin and norepinephrine reuptake inhibitors (SNRIs)
• Treatment-resistant depression
• Tricyclic antidepressants and tetracyclic antidepressants

Associated Procedures

• Complete blood count (CBC)
• Electroconvulsive therapy (ECT)
• Psychotherapy
• Transcranial magnetic stimulation
• Vagus nerve stimulation

News from Mayo Clinic

• Mayo Clinic Q and A: How to support a loved one with depression Oct. 23, 2022, 11:00 a.m. CDT
• Mayo study lays foundation to predict antidepressant response in people with suicide attempts Oct. 03, 2022, 03:30 p.m. CDT
• Science Saturday: Researchers validate threshold for determining effectiveness of antidepressant treatment Aug. 27, 2022, 11:00 a.m. CDT
• Mayo Clinic expert explains differences between adult and teen depression May 24, 2022, 12:19 p.m. CDT

Mayo Clinic in Rochester, Minnesota, has been recognized as one of the top Psychiatry hospitals in the nation for 2023-2024 by U.S. News & World Report.

• Symptoms & causes
• Diagnosis & treatment
• Doctors & departments
• Care at Mayo Clinic

Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.

• Opportunities

Mayo Clinic Press

Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press .

• Mayo Clinic on Incontinence - Mayo Clinic Press Mayo Clinic on Incontinence
• The Essential Diabetes Book - Mayo Clinic Press The Essential Diabetes Book
• Mayo Clinic on Hearing and Balance - Mayo Clinic Press Mayo Clinic on Hearing and Balance
• FREE Mayo Clinic Diet Assessment - Mayo Clinic Press FREE Mayo Clinic Diet Assessment
• Mayo Clinic Health Letter - FREE book - Mayo Clinic Press Mayo Clinic Health Letter - FREE book

Let’s celebrate our doctors!

Join us in celebrating and honoring Mayo Clinic physicians on March 30th for National Doctor’s Day.

• Share full article

Advertisement

Supported by

Personal Health

The Devastating Ways Depression and Anxiety Impact the Body

Mind and body form a two-way street.

By Jane E. Brody

It’s no surprise that when a person gets a diagnosis of heart disease, cancer or some other life-limiting or life-threatening physical ailment, they become anxious or depressed. But the reverse can also be true: Undue anxiety or depression can foster the development of a serious physical disease, and even impede the ability to withstand or recover from one. The potential consequences are particularly timely, as the ongoing stress and disruptions of the pandemic continue to take a toll on mental health .

The human organism does not recognize the medical profession’s artificial separation of mental and physical ills. Rather, mind and body form a two-way street. What happens inside a person’s head can have damaging effects throughout the body, as well as the other way around. An untreated mental illness can significantly increase the risk of becoming physically ill, and physical disorders may result in behaviors that make mental conditions worse.

In studies that tracked how patients with breast cancer fared, for example, Dr. David Spiegel and his colleagues at Stanford University School of Medicine showed decades ago that women whose depression was easing lived longer than those whose depression was getting worse. His research and other studies have clearly shown that “the brain is intimately connected to the body and the body to the brain,” Dr. Spiegel said in an interview. “The body tends to react to mental stress as if it was a physical stress.”

Despite such evidence, he and other experts say, chronic emotional distress is too often overlooked by doctors. Commonly, a physician will prescribe a therapy for physical ailments like heart disease or diabetes, only to wonder why some patients get worse instead of better.

Many people are reluctant to seek treatment for emotional ills. Some people with anxiety or depression may fear being stigmatized, even if they recognize they have a serious psychological problem. Many attempt to self-treat their emotional distress by adopting behaviors like drinking too much or abusing drugs, which only adds insult to their pre-existing injury.

And sometimes, family and friends inadvertently reinforce a person’s denial of mental distress by labeling it as “that’s just the way he is” and do nothing to encourage them to seek professional help.

How common are anxiety and depression?

Anxiety disorders affect nearly 20 percent of American adults . That means millions are beset by an overabundance of the fight-or-flight response that primes the body for action. When you’re stressed, the brain responds by prompting the release of cortisol, nature’s built-in alarm system. It evolved to help animals facing physical threats by increasing respiration, raising the heart rate and redirecting blood flow from abdominal organs to muscles that assist in confronting or escaping danger.

These protective actions stem from the neurotransmitters epinephrine and norepinephrine, which stimulate the sympathetic nervous system and put the body on high alert. But when they are invoked too often and indiscriminately, the chronic overstimulation can result in all manner of physical ills, including digestive symptoms like indigestion, cramps, diarrhea or constipation, and an increased risk of heart attack or stroke.

Depression, while less common than chronic anxiety, can have even more devastating effects on physical health. While it’s normal to feel depressed from time to time, more than 6 percent of adults have such persistent feelings of depression that it disrupts personal relationships, interferes with work and play, and impairs their ability to cope with the challenges of daily life. Persistent depression can also exacerbate a person’s perception of pain and increase their chances of developing chronic pain.

“Depression diminishes a person’s capacity to analyze and respond rationally to stress,” Dr. Spiegel said. “They end up on a vicious cycle with limited capacity to get out of a negative mental state.”

Potentially making matters worse, undue anxiety and depression often coexist, leaving people vulnerable to a panoply of physical ailments and an inability to adopt and stick with needed therapy.

A study of 1,204 elderly Korean men and women initially evaluated for depression and anxiety found that two years later, these emotional disorders increased their risk of physical disorders and disability. Anxiety alone was linked with heart disease, depression alone was linked with asthma, and the two together were linked with eyesight problems, persistent cough, asthma, hypertension, heart disease and gastrointestinal problems.

Treatment can counter emotional tolls

Although persistent anxiety and depression are highly treatable with medications, cognitive behavioral therapy and talk therapy, without treatment these conditions tend to get worse. According to Dr. John Frownfelter, treatment for any condition works better when doctors understand “the pressures patients face that affect their behavior and result in clinical harm.”

Dr. Frownfelter is an internist and chief medical officer of a start-up called Jvion. The organization uses artificial intelligence to identify not just medical factors but psychological, social and behavioral ones as well that can impact the effectiveness of treatment on patients’ health. Its aim is to foster more holistic approaches to treatment that address the whole patient, body and mind combined.

The analyses used by Jvion, a Hindi word meaning life-giving, could alert a doctor when underlying depression might be hindering the effectiveness of prescribed treatments for another condition. For example, patients being treated for diabetes who are feeling hopeless may fail to improve because they take their prescribed medication only sporadically and don’t follow a proper diet, Dr. Frownfelter said.

“We often talk about depression as a complication of chronic illness,” Dr. Frownfelter wrote in Medpage Today in July . “But what we don’t talk about enough is how depression can lead to chronic disease. Patients with depression may not have the motivation to exercise regularly or cook healthy meals. Many also have trouble getting adequate sleep.”

Some changes to medical care during the pandemic have greatly increased patient access to depression and anxiety treatment. The expansion of telehealth has enabled patients to access treatment by psychotherapists who may be as far as a continent away.

Patients may also be able to treat themselves without the direct help of a therapist. For example, Dr. Spiegel and his co-workers created an app called Reveri that teaches people self-hypnosis techniques designed to help reduce stress and anxiety, improve sleep, reduce pain and suppress or quit smoking.

Improving sleep is especially helpful, Dr. Spiegel said, because “it enhances a person’s ability to regulate the stress response system and not get stuck in a mental rut.” Data demonstrating the effectiveness of the Reveri app has been collected but not yet published, he said.

Jane Brody is the Personal Health columnist, a position she has held since 1976. She has written more than a dozen books including the best sellers “Jane Brody’s Nutrition Book” and “Jane Brody’s Good Food Book.” More about Jane E. Brody

Jane Brody’s Personal Health Advice

After joining the new york times in 1965, she was its personal health columnist from 1976 to 2022. revisit some of her most memorable writing:.

Brody’s first column, on jogging , ran on Nov. 10, 1976. Her last, on Feb. 21. In it, she highlighted the evolution of health advice  throughout her career.

Personal Health has often offered useful advice and a refreshing perspective. Declutter? This is why you must . Cup of coffee? Yes, please.

As a columnist, she has never been afraid to try out, and write about, new things — from intermittent fasting  to knitting groups .

How do you put into words the pain of losing a spouse of 43 years? It is “nothing like losing a parent,” she wrote of her own experience with grieving .

Need advice on aging? She has explored how to do it gracefully ,  building muscle strength  and knee replacements .

An official website of the United States government

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

• Publications
• Account settings

Preview improvements coming to the PMC website in October 2024. Learn More or Try it out now .

• Advanced Search
• Journal List

Biological, Psychological, and Social Determinants of Depression: A Review of Recent Literature

Olivia remes.

1 Institute for Manufacturing, University of Cambridge, Cambridge CB3 0FS, UK

João Francisco Mendes

2 NOVA Medical School, Universidade NOVA de Lisboa, 1099-085 Lisbon, Portugal; ku.ca.mac@94cfj

Peter Templeton

3 IfM Engage Limited, Institute for Manufacturing, University of Cambridge, Cambridge CB3 0FS, UK; ku.ca.mac@32twp

4 The William Templeton Foundation for Young People’s Mental Health (YPMH), Cambridge CB2 0AH, UK

Associated Data

Depression is one of the leading causes of disability, and, if left unmanaged, it can increase the risk for suicide. The evidence base on the determinants of depression is fragmented, which makes the interpretation of the results across studies difficult. The objective of this study is to conduct a thorough synthesis of the literature assessing the biological, psychological, and social determinants of depression in order to piece together the puzzle of the key factors that are related to this condition. Titles and abstracts published between 2017 and 2020 were identified in PubMed, as well as Medline, Scopus, and PsycInfo. Key words relating to biological, social, and psychological determinants as well as depression were applied to the databases, and the screening and data charting of the documents took place. We included 470 documents in this literature review. The findings showed that there are a plethora of risk and protective factors (relating to biological, psychological, and social determinants) that are related to depression; these determinants are interlinked and influence depression outcomes through a web of causation. In this paper, we describe and present the vast, fragmented, and complex literature related to this topic. This review may be used to guide practice, public health efforts, policy, and research related to mental health and, specifically, depression.

1. Introduction

Depression is one of the most common mental health issues, with an estimated prevalence of 5% among adults [ 1 , 2 ]. Symptoms may include anhedonia, feelings of worthlessness, concentration and sleep difficulties, and suicidal ideation. According to the World Health Organization, depression is a leading cause of disability; research shows that it is a burdensome condition with a negative impact on educational trajectories, work performance, and other areas of life [ 1 , 3 ]. Depression can start early in the lifecourse and, if it remains unmanaged, may increase the risk for substance abuse, chronic conditions, such as cardiovascular disease, and premature mortality [ 4 , 5 , 6 , 7 , 8 ].

Treatment for depression exists, such as pharmacotherapy, cognitive behavioural therapy, and other modalities. A meta-analysis of randomized, placebo-controlled trials of patients shows that 56–60% of people respond well to active treatment with antidepressants (selective serotonin reuptake inhibitors, tricyclic antidepressants) [ 9 ]. However, pharmacotherapy may be associated with problems, such as side-effects, relapse issues, a potential duration of weeks until the medication starts working, and possible limited efficacy in mild cases [ 10 , 11 , 12 , 13 , 14 ]. Psychotherapy is also available, but access barriers can make it difficult for a number of people to get the necessary help.

Studies on depression have increased significantly over the past few decades. However, the literature remains fragmented and the interpretation of heterogeneous findings across studies and between fields is difficult. The cross-pollination of ideas between disciplines, such as genetics, neurology, immunology, and psychology, is limited. Reviews on the determinants of depression have been conducted, but they either focus exclusively on a particular set of determinants (ex. genetic risk factors [ 15 ]) or population sub-group (ex. children and adolescents [ 16 ]) or focus on characteristics measured predominantly at the individual level (ex. focus on social support, history of depression [ 17 ]) without taking the wider context (ex. area-level variables) into account. An integrated approach paying attention to key determinants from the biological, psychological, and social spheres, as well as key themes, such as the lifecourse perspective, enables clinicians and public health authorities to develop tailored, person-centred approaches.

The primary aim of this literature review: to address the aforementioned challenges, we have synthesized recent research on the biological, psychological, and social determinants of depression and we have reviewed research from fields including genetics, immunology, neurology, psychology, public health, and epidemiology, among others.

The subsidiary aim: we have paid special attention to important themes, including the lifecourse perspective and interactions between determinants, to guide further efforts by public health and medical professionals.

This literature review can be used as an evidence base by those in public health and the clinical setting and can be used to inform targeted interventions.

2. Materials and Methods

We conducted a review of the literature on the biological, psychological, and social determinants of depression in the last 4 years. We decided to focus on these determinants after discussions with academics (from the Manchester Metropolitan University, University of Cardiff, University of Colorado, Boulder, University of Cork, University of Leuven, University of Texas), charity representatives, and people with lived experience at workshops held by the University of Cambridge in 2020. In several aspects, we attempted to conduct this review according to PRISMA guidelines [ 18 ].

The inclusion and exclusion criteria are the following:

• - We included documents, such as primary studies, literature reviews, systematic reviews, meta-analyses, reports, and commentaries on the determinants of depression. The determinants refer to variables that appear to be linked to the development of depression, such as physiological factors (e.g., the nervous system, genetics), but also factors that are further away or more distal to the condition. Determinants may be risk or protective factors, and individual- or wider-area-level variables.
• - We focused on major depressive disorder, treatment-resistant depression, dysthymia, depressive symptoms, poststroke depression, perinatal depression, as well as depressive-like behaviour (common in animal studies), among others.
• - We included papers regardless of the measurement methods of depression.
• - We included papers that focused on human and/or rodent research.
• - This review focused on articles written in the English language.
• - Documents published between 2017–2020 were captured to provide an understanding of the latest research on this topic.
• - Studies that assessed depression as a comorbidity or secondary to another disorder.
• - Studies that did not focus on rodent and/or human research.
• - Studies that focused on the treatment of depression. We made this decision, because this is an in-depth topic that would warrant a separate stand-alone review.
• Next, we searched PubMed (2017–2020) using keywords related to depression and determinants. Appendix A contains the search strategy used. We also conducted focused searches in Medline, Scopus, and PsycInfo (2017–2020).
• Once the documents were identified through the databases, the inclusion and exclusion criteria were applied to the titles and abstracts. Screening of documents was conducted by O.R., and a subsample was screened by J.M.; any discrepancies were resolved through a communication process.
• The full texts of documents were retrieved, and the inclusion and exclusion criteria were again applied. A subsample of documents underwent double screening by two authors (O.R., J.M.); again, any discrepancies were resolved through communication.
• a. A data charting form was created to capture the data elements of interest, including the authors, titles, determinants (biological, psychological, social), and the type of depression assessed by the research (e.g., major depression, depressive symptoms, depressive behaviour).
• b. The data charting form was piloted on a subset of documents, and refinements to it were made. The data charting form was created with the data elements described above and tested in 20 studies to determine whether refinements in the wording or language were needed.
• c. Data charting was conducted on the documents.
• d. Narrative analysis was conducted on the data charting table to identify key themes. When a particular finding was noted more than once, it was logged as a potential theme, with a review of these notes yielding key themes that appeared on multiple occasions. When key themes were identified, one researcher (O.R.) reviewed each document pertaining to that theme and derived concepts (key determinants and related outcomes). This process (a subsample) was verified by a second author (J.M.), and the two authors resolved any discrepancies through communication. Key themes were also checked as to whether they were of major significance to public mental health and at the forefront of public health discourse according to consultations we held with stakeholders from the Manchester Metropolitan University, University of Cardiff, University of Colorado, Boulder, University of Cork, University of Leuven, University of Texas, charity representatives, and people with lived experience at workshops held by the University of Cambridge in 2020.

We condensed the extensive information gleaned through our review into short summaries (with key points boxes for ease of understanding and interpretation of the data).

Through the searches, 6335 documents, such as primary studies, literature reviews, systematic reviews, meta-analyses, reports, and commentaries, were identified. After applying the inclusion and exclusion criteria, 470 papers were included in this review ( Supplementary Table S1 ). We focused on aspects related to biological, psychological, and social determinants of depression (examples of determinants and related outcomes are provided under each of the following sections.

3.1. Biological Factors

The following aspects will be discussed in this section: physical health conditions; then specific biological factors, including genetics; the microbiome; inflammatory factors; stress and hypothalamic–pituitary–adrenal (HPA) axis dysfunction, and the kynurenine pathway. Finally, aspects related to cognition will also be discussed in the context of depression.

3.1.1. Physical Health Conditions

Studies on physical health conditions—key points:

• The presence of a physical health condition can increase the risk for depression
• Psychological evaluation in physically sick populations is needed
• There is large heterogeneity in study design and measurement; this makes the comparison of findings between and across studies difficult

A number of studies examined the links between the outcome of depression and physical health-related factors, such as bladder outlet obstruction, cerebral atrophy, cataract, stroke, epilepsy, body mass index and obesity, diabetes, urinary tract infection, forms of cancer, inflammatory bowel disorder, glaucoma, acne, urea accumulation, cerebral small vessel disease, traumatic brain injury, and disability in multiple sclerosis [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 ]. For example, bladder outlet obstruction has been linked to inflammation and depressive behaviour in rodent research [ 24 ]. The presence of head and neck cancer also seemed to be related to an increased risk for depressive disorder [ 45 ]. Gestational diabetes mellitus has been linked to depressive symptoms in the postpartum period (but no association has been found with depression in the third pregnancy trimester) [ 50 ], and a plethora of other such examples of relationships between depression and physical conditions exist. As such, the assessment of psychopathology and the provision of support are necessary in individuals of ill health [ 45 ]. Despite the large evidence base on physical health-related factors, differences in study methodology and design, the lack of standardization when it comes to the measurement of various physical health conditions and depression, and heterogeneity in the study populations makes it difficult to compare studies [ 50 ].

The next subsections discuss specific biological factors, including genetics; the microbiome; inflammatory factors; stress and hypothalamic–pituitary–adrenal (HPA) axis dysfunction, and the kynurenine pathway; and aspects related to cognition.

3.1.2. Genetics

Studies on genetics—key points:

There were associations between genetic factors and depression; for example:

• The brain-derived neurotrophic factor (BDNF) plays an important role in depression
• Links exist between major histocompatibility complex region genes, as well as various gene polymorphisms and depression
• Single nucleotide polymorphisms (SNPs) of genes involved in the tryptophan catabolites pathway are of interest in relation to depression

A number of genetic-related factors, genomic regions, polymorphisms, and other related aspects have been examined with respect to depression [ 61 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 ]. The influence of BDNF in relation to depression has been amply studied [ 117 , 118 , 141 , 142 , 143 ]. Research has shown associations between depression and BDNF (as well as candidate SNPs of the BDNF gene, polymorphisms of the BDNF gene, and the interaction of these polymorphisms with other determinants, such as stress) [ 129 , 144 , 145 ]. Specific findings have been reported: for example, a study reported a link between the BDNF rs6265 allele (A) and major depressive disorder [ 117 ].

Other research focused on major histocompatibility complex region genes, endocannabinoid receptor gene polymorphisms, as well as tissue-specific genes and gene co-expression networks and their links to depression [ 99 , 110 , 112 ]. The SNPs of genes involved in the tryptophan catabolites pathway have also been of interest when studying the pathogenesis of depression.

The results from genetics studies are compelling; however, the findings remain mixed. One study indicated no support for depression candidate gene findings [ 122 ]. Another study found no association between specific polymorphisms and major depressive disorder [ 132 ]. As such, further research using larger samples is needed to corroborate the statistically significant associations reported in the literature.

3.1.3. Microbiome

Studies on the microbiome—key points:

• The gut bacteria and the brain communicate via both direct and indirect pathways called the gut-microbiota-brain axis (the bidirectional communication networks between the central nervous system and the gastrointestinal tract; this axis plays an important role in maintaining homeostasis).
• A disordered microbiome can lead to inflammation, which can then lead to depression
• There are possible links between the gut microbiome, host liver metabolism, brain inflammation, and depression

The common themes of this review have focused on the microbiome/microbiota or gut metabolome [ 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 , 155 , 156 , 157 , 158 , 159 , 160 , 161 ], the microbiota-gut-brain axis, and related factors [ 152 , 162 , 163 , 164 , 165 , 166 , 167 ]. When there is an imbalance in the intestinal bacteria, this can interfere with emotional regulation and contribute to harmful inflammatory processes and mood disorders [ 148 , 151 , 153 , 155 , 157 ]. Rodent research has shown that there may be a bidirectional association between the gut microbiota and depression: a disordered gut microbiota can play a role in the onset of this mental health problem, but, at the same time, the existence of stress and depression may also lead to a lower level of richness and diversity in the microbiome [ 158 ].

Research has also attempted to disentangle the links between the gut microbiome, host liver metabolism, brain inflammation, and depression, as well as the role of the ratio of lactobacillus to clostridium [ 152 ]. The literature has also examined the links between medication, such as antibiotics, and mood and behaviour, with the findings showing that antibiotics may be related to depression [ 159 , 168 ]. The links between the microbiome and depression are complex, and further studies are needed to determine the underpinning causal mechanisms.

3.1.4. Inflammation

Studies on inflammation—key points:

• Pro-inflammatory cytokines are linked to depression
• Pro-inflammatory cytokines, such as the tumour necrosis factor (TNF)-alpha, may play an important role
• Different methods of measurement are used, making the comparison of findings across studies difficult

Inflammation has been a theme in this literature review [ 60 , 161 , 164 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184 ]. The findings show that raised levels of inflammation (because of factors such as pro-inflammatory cytokines) have been associated with depression [ 60 , 161 , 174 , 175 , 178 ]. For example, pro-inflammatory cytokines, such as tumour necrosis factor (TNF)-alpha, have been linked to depression [ 185 ]. Various determinants, such as early life stress, have also been linked to systemic inflammation, and this can increase the risk for depression [ 186 ].

Nevertheless, not everyone with elevated inflammation develops depression; therefore, this is just one route out of many linked to pathogenesis. Despite the compelling evidence reported with respect to inflammation, it is difficult to compare the findings across studies because of different methods used to assess depression and its risk factors.

3.1.5. Stress and HPA Axis Dysfunction

Studies on stress and HPA axis dysfunction—key points:

• Stress is linked to the release of proinflammatory factors
• The dysregulation of the HPA axis is linked to depression
• Determinants are interlinked in a complex web of causation

Stress was studied in various forms in rodent populations and humans [ 144 , 145 , 155 , 174 , 176 , 180 , 185 , 186 , 187 , 188 , 189 , 190 , 191 , 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 , 203 , 204 , 205 , 206 , 207 , 208 , 209 , 210 , 211 ].

Although this section has some overlap with others (as is to be expected because all of these determinants and body systems are interlinked), a number of studies have focused on the impact of stress on mental health. Stress has been mentioned in the literature as a risk factor of poor mental health and has emerged as an important determinant of depression. The effects of this variable are wide-ranging, and a short discussion is warranted.

Stress has been linked to the release of inflammatory factors, as well as the development of depression [ 204 ]. When the stress is high or lasts for a long period of time, this may negatively impact the brain. Chronic stress can impact the dendrites and synapses of various neurons, and may be implicated in the pathway leading to major depressive disorder [ 114 ]. As a review by Uchida et al. indicates, stress may be associated with the “dysregulation of neuronal and synaptic plasticity” [ 114 ]. Even in rodent studies, stress has a negative impact: chronic and unpredictable stress (and other forms of tension or stress) have been linked to unusual behaviour and depression symptoms [ 114 ].

The depression process and related brain changes, however, have also been linked to the hyperactivity or dysregulation of the HPA axis [ 127 , 130 , 131 , 182 , 212 ]. One review indicates that a potential underpinning mechanism of depression relates to “HPA axis abnormalities involved in chronic stress” [ 213 ]. There is a complex relationship between the HPA axis, glucocorticoid receptors, epigenetic mechanisms, and psychiatric sequelae [ 130 , 212 ].

In terms of the relationship between the HPA axis and stress and their influence on depression, the diathesis–stress model offers an explanation: it could be that early stress plays a role in the hyperactivation of the HPA axis, thus creating a predisposition “towards a maladaptive reaction to stress”. When this predisposition then meets an acute stressor, depression may ensue; thus, in line with the diathesis–stress model, a pre-existing vulnerability and stressor can create fertile ground for a mood disorder [ 213 ]. An integrated review by Dean and Keshavan [ 213 ] suggests that HPA axis hyperactivity is, in turn, related to other determinants, such as early deprivation and insecure early attachment; this again shows the complex web of causation between the different determinants.

3.1.6. Kynurenine Pathway

Studies on the kynurenine pathway—key points:

• The kynurenine pathway is linked to depression
• Indolamine 2,3-dioxegenase (IDO) polymorphisms are linked to postpartum depression

The kynurenine pathway was another theme that emerged in this review [ 120 , 178 , 181 , 184 , 214 , 215 , 216 , 217 , 218 , 219 , 220 , 221 ]. The kynurenine pathway has been implicated not only in general depressed mood (inflammation-induced depression) [ 184 , 214 , 219 ] but also postpartum depression [ 120 ]. When the kynurenine metabolism pathway is activated, this results in metabolites, which are neurotoxic.

A review by Jeon et al. notes a link between the impairment of the kynurenine pathway and inflammation-induced depression (triggered by treatment for various physical diseases, such as malignancy). The authors note that this could represent an important opportunity for immunopharmacology [ 214 ]. Another review by Danzer et al. suggests links between the inflammation-induced activation of indolamine 2,3-dioxegenase (the enzyme that converts tryptophan to kynurenine), the kynurenine metabolism pathway, and depression, and also remarks about the “opportunities for treatment of inflammation-induced depression” [ 184 ].

3.1.7. Cognition

Studies on cognition and the brain—key points:

• Cognitive decline and cognitive deficits are linked to increased depression risk
• Cognitive reserve is important in the disability/depression relationship
• Family history of cognitive impairment is linked to depression

A number of studies have focused on the theme of cognition and the brain. The results show that factors, such as low cognitive ability/function, cognitive vulnerability, cognitive impairment or deficits, subjective cognitive decline, regression of dendritic branching and hippocampal atrophy/death of hippocampal cells, impaired neuroplasticity, and neurogenesis-related aspects, have been linked to depression [ 131 , 212 , 222 , 223 , 224 , 225 , 226 , 227 , 228 , 229 , 230 , 231 , 232 , 233 , 234 , 235 , 236 , 237 , 238 , 239 ]. The cognitive reserve appears to act as a moderator and can magnify the impact of certain determinants on poor mental health. For example, in a study in which participants with multiple sclerosis also had low cognitive reserve, disability was shown to increase the risk for depression [ 63 ]. Cognitive deficits can be both causal and resultant in depression. A study on individuals attending outpatient stroke clinics showed that lower scores in cognition were related to depression; thus, cognitive impairment appears to be associated with depressive symptomatology [ 226 ]. Further, Halahakoon et al. [ 222 ] note a meta-analysis [ 240 ] that shows that a family history of cognitive impairment (in first degree relatives) is also linked to depression.

In addition to cognitive deficits, low-level cognitive ability [ 231 ] and cognitive vulnerability [ 232 ] have also been linked to depression. While cognitive impairment may be implicated in the pathogenesis of depressive symptoms [ 222 ], negative information processing biases are also important; according to the ‘cognitive neuropsychological’ model of depression, negative affective biases play a central part in the development of depression [ 222 , 241 ]. Nevertheless, the evidence on this topic is mixed and further work is needed to determine the underpinning mechanisms between these states.

3.2. Psychological Factors

Studies on psychological factors—key points:

• There are many affective risk factors linked to depression
• Determinants of depression include negative self-concept, sensitivity to rejection, neuroticism, rumination, negative emotionality, and others

A number of studies have been undertaken on the psychological factors linked to depression (including mastery, self-esteem, optimism, negative self-image, current or past mental health conditions, and various other aspects, including neuroticism, brooding, conflict, negative thinking, insight, cognitive fusion, emotional clarity, rumination, dysfunctional attitudes, interpretation bias, and attachment style) [ 66 , 128 , 140 , 205 , 210 , 228 , 235 , 242 , 243 , 244 , 245 , 246 , 247 , 248 , 249 , 250 , 251 , 252 , 253 , 254 , 255 , 256 , 257 , 258 , 259 , 260 , 261 , 262 , 263 , 264 , 265 , 266 , 267 , 268 , 269 , 270 , 271 , 272 , 273 , 274 , 275 , 276 , 277 , 278 , 279 , 280 , 281 , 282 , 283 , 284 , 285 , 286 , 287 , 288 , 289 , 290 ]. Determinants related to this condition include low self-esteem and shame, among other factors [ 269 , 270 , 275 , 278 ]. Several emotional states and traits, such as neuroticism [ 235 , 260 , 271 , 278 ], negative self-concept (with self-perceptions of worthlessness and uselessness), and negative interpretation or attention biases have been linked to depression [ 261 , 271 , 282 , 283 , 286 ]. Moreover, low emotional clarity has been associated with depression [ 267 ]. When it comes to the severity of the disorder, it appears that meta-emotions (“emotions that occur in response to other emotions (e.g., guilt about anger)” [ 268 ]) have a role to play in depression [ 268 ].

A determinant that has received much attention in mental health research concerns rumination. Rumination has been presented as a mediator but also as a risk factor for depression [ 57 , 210 , 259 ]. When studied as a risk factor, it appears that the relationship of rumination with depression is mediated by variables that include limited problem-solving ability and insufficient social support [ 259 ]. However, rumination also appears to act as a mediator: for example, this variable (particularly brooding rumination) lies on the causal pathway between poor attention control and depression [ 265 ]. This shows that determinants may present in several forms: as moderators or mediators, risk factors or outcomes, and this is why disentangling the relationships between the various factors linked to depression is a complex task.

The psychological determinants are commonly researched variables in the mental health literature. A wide range of factors have been linked to depression, such as the aforementioned determinants, but also: (low) optimism levels, maladaptive coping (such as avoidance), body image issues, and maladaptive perfectionism, among others [ 269 , 270 , 272 , 273 , 275 , 276 , 279 , 285 , 286 ]. Various mechanisms have been proposed to explain the way these determinants increase the risk for depression. One of the underpinning mechanisms linking the determinants and depression concerns coping. For example, positive fantasy engagement, cognitive biases, or personality dispositions may lead to emotion-focused coping, such as brooding, and subsequently increase the risk for depression [ 272 , 284 , 287 ]. Knowing the causal mechanisms linking the determinants to outcomes provides insight for the development of targeted interventions.

3.3. Social Determinants

Studies on social determinants—key points:

• Social determinants are the conditions in the environments where people are born, live, learn, work, play, etc.; these influence (mental) health [ 291 ]
• There are many social determinants linked to depression, such as sociodemographics, social support, adverse childhood experiences
• Determinants can be at the individual, social network, community, and societal levels

Studies also focused on the social determinants of (mental) health; these are the conditions in which people are born, live, learn, work, play, and age, and have a significant influence on wellbeing [ 291 ]. Factors such as age, social or socioeconomic status, social support, financial strain and deprivation, food insecurity, education, employment status, living arrangements, marital status, race, childhood conflict and bullying, violent crime exposure, abuse, discrimination, (self)-stigma, ethnicity and migrant status, working conditions, adverse or significant life events, illiteracy or health literacy, environmental events, job strain, and the built environment have been linked to depression, among others [ 52 , 133 , 235 , 236 , 239 , 252 , 269 , 280 , 292 , 293 , 294 , 295 , 296 , 297 , 298 , 299 , 300 , 301 , 302 , 303 , 304 , 305 , 306 , 307 , 308 , 309 , 310 , 311 , 312 , 313 , 314 , 315 , 316 , 317 , 318 , 319 , 320 , 321 , 322 , 323 , 324 , 325 , 326 , 327 , 328 , 329 , 330 , 331 , 332 , 333 , 334 , 335 , 336 , 337 , 338 , 339 , 340 , 341 , 342 , 343 , 344 , 345 , 346 , 347 , 348 , 349 , 350 , 351 , 352 , 353 , 354 , 355 , 356 , 357 , 358 , 359 , 360 , 361 , 362 , 363 , 364 , 365 , 366 , 367 , 368 , 369 , 370 , 371 ]. Social support and cohesion, as well as structural social capital, have also been identified as determinants [ 140 , 228 , 239 , 269 , 293 , 372 , 373 , 374 , 375 , 376 , 377 , 378 , 379 ]. In a study, part of the findings showed that low levels of education have been shown to be linked to post-stroke depression (but not severe or clinical depression outcomes) [ 299 ]. A study within a systematic review indicated that having only primary education was associated with a higher risk of depression compared to having secondary or higher education (although another study contrasted this finding) [ 296 ]. Various studies on socioeconomic status-related factors have been undertaken [ 239 , 297 ]; the research has shown that a low level of education is linked to depression [ 297 ]. Low income is also related to depressive disorders [ 312 ]. By contrast, high levels of education and income are protective [ 335 ].

A group of determinants touched upon by several studies included adverse childhood or early life experiences: ex. conflict with parents, early exposure to traumatic life events, bullying and childhood trauma were found to increase the risk of depression (ex. through pathways, such as inflammation, interaction effects, or cognitive biases) [ 161 , 182 , 258 , 358 , 362 , 380 ].

Gender-related factors were also found to play an important role with respect to mental health [ 235 , 381 , 382 , 383 , 384 , 385 ]. Gender inequalities can start early on in the lifecourse, and women were found to be twice as likely to have depression as men. Gender-related factors were linked to cognitive biases, resilience and vulnerabilities [ 362 , 384 ].

Determinants can impact mental health outcomes through underpinning mechanisms. For example, harmful determinants can influence the uptake of risk behaviours. Risk behaviours, such as sedentary behaviour, substance abuse and smoking/nicotine exposure, have been linked to depression [ 226 , 335 , 355 , 385 , 386 , 387 , 388 , 389 , 390 , 391 , 392 , 393 , 394 , 395 , 396 , 397 , 398 , 399 , 400 , 401 ]. Harmful determinants can also have an impact on diet. Indeed, dietary aspects and diet components (ex. vitamin D, folate, selenium intake, iron, vitamin B12, vitamin K, fiber intake, zinc) as well as diet-related inflammatory potential have been linked to depression outcomes [ 161 , 208 , 236 , 312 , 396 , 402 , 403 , 404 , 405 , 406 , 407 , 408 , 409 , 410 , 411 , 412 , 413 , 414 , 415 , 416 , 417 , 418 , 419 , 420 , 421 , 422 , 423 , 424 , 425 , 426 , 427 , 428 ]. A poor diet has been linked to depression through mechanisms such as inflammation [ 428 ].

Again, it is difficult to constrict diet to the ‘social determinants of health’ category as it also relates to inflammation (biological determinants) and could even stand alone as its own category. Nevertheless, all of these factors are interlinked and influence one another in a complex web of causation, as mentioned elsewhere in the paper.

Supplementary Figure S1 contains a representation of key determinants acting at various levels: the individual, social network, community, and societal levels. The determinants have an influence on risk behaviours, and this, in turn, can affect the mood (i.e., depression), body processes (ex. can increase inflammation), and may negatively influence brain structure and function.

3.4. Others

Studies on ‘other’ determinants—key points:

• A number of factors are related to depression
• These may not be as easily categorized as the other determinants in this paper

A number of factors arose in this review that were related to depression; it was difficult to place these under a specific heading above, so this ‘other’ category was created. A number of these could be sorted under the ‘social determinants of depression’ category. For example, being exposed to deprivation, hardship, or adversity may increase the risk for air pollution exposure and nighttime shift work, among others, and the latter determinants have been found to increase the risk for depression. Air pollution could also be regarded as an ecologic-level (environmental) determinant of mental health.

Nevertheless, we have decided to leave these factors in a separate category (because their categorization may not be as immediately clear-cut as others), and these factors include: low-level light [ 429 ], weight cycling [ 430 ], water contaminants [ 431 ], trade [ 432 ], air pollution [ 433 , 434 ], program-level variables (ex. feedback and learning experience) [ 435 ], TV viewing [ 436 ], falls [ 437 ], various other biological factors [ 116 , 136 , 141 , 151 , 164 , 182 , 363 , 364 , 438 , 439 , 440 , 441 , 442 , 443 , 444 , 445 , 446 , 447 , 448 , 449 , 450 , 451 , 452 , 453 , 454 , 455 , 456 , 457 , 458 , 459 , 460 , 461 , 462 , 463 , 464 , 465 , 466 , 467 , 468 , 469 ], mobile phone use [ 470 ], ultrasound chronic exposure [ 471 ], nighttime shift work [ 472 ], work accidents [ 473 ], therapy enrollment [ 226 ], and exposure to light at night [ 474 ].

4. Cross-Cutting Themes

4.1. lifecourse perspective.

Studies on the lifecourse perspective—key points:

• Early life has an importance on mental health
• Stress has been linked to depression
• In old age, the decline in social capital is important

Trajectories and life events are important when it comes to the lifecourse perspective. Research has touched on the influence of prenatal or early life stress on an individual’s mental health trajectory [ 164 , 199 , 475 ]. Severe stress that occurs in the form of early-life trauma has also been associated with depressive symptoms [ 362 , 380 ]. It may be that some individuals exposed to trauma develop thoughts of personal failure, which then serve as a catalyst of depression [ 380 ].

At the other end of the life trajectory—old age—specific determinants have been linked to an increased risk for depression. Older people are at a heightened risk of losing their social networks, and structural social capital has been identified as important in relation to depression in old age [ 293 ].

4.2. Gene–Environment Interactions

Studies on gene–environment interactions—key points:

• The environment and genetics interact to increase the risk of depression
• The etiology of depression is multifactorial
• Adolescence is a time of vulnerability

A number of studies have touched on gene–environment interactions [ 72 , 77 , 82 , 119 , 381 , 476 , 477 , 478 , 479 , 480 , 481 ]. The interactions between genetic factors and determinants, such as negative life events (ex. relationship and social difficulties, serious illness, unemployment and financial crises) and stressors (ex. death of spouse, minor violations of law, neighbourhood socioeconomic status) have been studied in relation to depression [ 82 , 135 , 298 , 449 , 481 ]. A study reported an interaction of significant life events with functional variation in the serotonin-transporter-linked polymorphic region (5-HTTLPR) allele type (in the context of multiple sclerosis) and linked this to depression [ 361 ], while another reported an interaction between stress and 5-HTTLPR in relation to depression [ 480 ]. Other research reported that the genetic variation of HPA-axis genes has moderating effects on the relationship between stressors and depression [ 198 ]. Another study showed that early-life stress interacts with gene variants to increase the risk for depression [ 77 ].

Adolescence is a time of vulnerability [ 111 , 480 ]. Perceived parental support has been found to interact with genes (GABRR1, GABRR2), and this appears to be associated with depressive symptoms in adolescence [ 480 ]. It is important to pay special attention to critical periods in the lifecourse so that adequate support is provided to those who are most vulnerable.

The etiology of depression is multifactorial, and it is worthwhile to examine the interaction between multiple factors, such as epigenetic, genetic, and environmental factors, in order to truly understand this mental health condition. Finally, taking into account critical periods of life when assessing gene–environment interactions is important for developing targeted interventions.

5. Discussion

Depression is one of the most common mental health conditions, and, if left untreated, it can increase the risk for substance abuse, anxiety disorders, and suicide. In the past 20 years, a large number of studies on the risk and protective factors of depression have been undertaken in various fields, such as genetics, neurology, immunology, and epidemiology. However, there are limitations associated with the extant evidence base. The previous syntheses on depression are limited in scope and focus exclusively on social or biological factors, population sub-groups, or examine depression as a comorbidity (rather than an independent disorder). The research on the determinants and causal pathways of depression is fragmentated and heterogeneous, and this has not helped to stimulate progress when it comes to the prevention and intervention of this condition—specifically unravelling the complexity of the determinants related to this condition and thus refining the prevention and intervention methods.

The scope of this paper was to bring together the heterogeneous, vast, and fragmented literature on depression and paint a picture of the key factors that contribute to this condition. The findings from this review show that there are important themes when it comes to the determinants of depression, such as: the microbiome, dysregulation of the HPA axis, inflammatory reactions, the kynurenine pathway, as well as psychological and social factors. It may be that physical factors are proximal determinants of depression, which, in turn, are acted on by more distal social factors, such as deprivation, environmental events, and social capital.

The Marmot Report [ 291 ], the World Health Organization [ 482 ], and Compton et al. [ 483 ] highlight that the most disadvantaged segments of society are suffering (the socioeconomic context is important), and this inequality in resources has translated to inequality in mental health outcomes [ 483 ]. To tackle the issue of egalitarianism and restore equality in the health between the groups, the social determinants need to be addressed [ 483 ]. A wide range of determinants of mental health have been identified in the literature: age, gender, ethnicity, family upbringing and early attachment patterns, social support, access to food, water and proper nutrition, and community factors. People spiral downwards because of individual- and societal-level circumstances; therefore, these circumstances along with the interactions between the determinants need to be considered.

Another important theme in the mental health literature is the lifecourse perspective. This shows that the timing of events has significance when it comes to mental health. Early life is a critical period during the lifespan at which cognitive processes develop. Exposure to harmful determinants, such as stress, during this period can place an individual on a trajectory of depression in adulthood or later life. When an individual is exposed to harmful determinants during critical periods and is also genetically predisposed to depression, the risk for the disorder can be compounded. This is why aspects such as the lifecourse perspective and gene–environment interactions need to be taken into account. Insight into this can also help to refine targeted interventions.

A number of interventions for depression have been developed or recommended, addressing, for example, the physical factors described here and lifestyle modifications. Interventions targeting various factors, such as education and socioeconomic status, are needed to help prevent and reduce the burden of depression. Further research on the efficacy of various interventions is needed. Additional studies are also needed on each of the themes described in this paper, for example: the biological factors related to postpartum depression [ 134 ], and further work is needed on depression outcomes, such as chronic, recurrent depression [ 452 ]. Previous literature has shown that chronic stress (associated with depression) is also linked to glucocorticoid receptor resistance, as well as problems with the regulation of the inflammatory response [ 484 ]. Further work is needed on this and the underpinning mechanisms between the determinants and outcomes. This review highlighted the myriad ways of measuring depression and its determinants [ 66 , 85 , 281 , 298 , 451 , 485 ]. Thus, the standardization of the measurements of the outcomes (ex. a gold standard for measuring depression) and determinants is essential; this can facilitate comparisons of findings across studies.

5.1. Strengths

This paper has important strengths. It brings together the wide literature on depression and helps to bridge disciplines in relation to one of the most common mental health problems. We identified, selected, and extracted data from studies, and provided concise summaries.

5.2. Limitations

The limitations of the review include missing potentially important studies; however, this is a weakness that cannot be avoided by literature reviews. Nevertheless, the aim of the review was not to identify each study that has been conducted on the risk and protective factors of depression (which a single review is unable to capture) but rather to gain insight into the breadth of literature on this topic, highlight key biological, psychological, and social determinants, and shed light on important themes, such as the lifecourse perspective and gene–environment interactions.

6. Conclusions

We have reviewed the determinants of depression and recognize that there are a multitude of risk and protective factors at the individual and wider ecologic levels. These determinants are interlinked and influence one another. We have attempted to describe the wide literature on this topic, and we have brought to light major factors that are of public mental health significance. This review may be used as an evidence base by those in public health, clinical practice, and research.

This paper discusses key areas in depression research; however, an exhaustive discussion of all the risk factors and determinants linked to depression and their mechanisms is not possible in one journal article—which, by its very nature, a single paper cannot do. We have brought to light overarching factors linked to depression and a workable conceptual framework that may guide clinical and public health practice; however, we encourage other researchers to continue to expand on this timely and relevant work—particularly as depression is a top priority on the policy agenda now.

Acknowledgments

Thank you to Isla Kuhn for the help with the Medline, Scopus, and PsycInfo database searches.

Supplementary Materials

The following are available online at https://www.mdpi.com/article/10.3390/brainsci11121633/s1 , Figure S1: Conceptual framework: Determinants of depression, Table S1: Data charting—A selection of determinants from the literature.

Appendix A.1. Search Strategy

Search: ((((((((((((((((“Gene-Environment Interaction”[Majr]) OR (“Genetics”[Mesh])) OR (“Genome-Wide Association Study”[Majr])) OR (“Microbiota”[Mesh] OR “Gastrointestinal Microbiome”[Mesh])) OR (“Neurogenic Inflammation”[Mesh])) OR (“genetic determinant”)) OR (“gut-brain-axis”)) OR (“Kynurenine”[Majr])) OR (“Cognition”[Mesh])) OR (“Neuronal Plasticity”[Majr])) OR (“Neurogenesis”[Mesh])) OR (“Genes”[Mesh])) OR (“Neurology”[Majr])) OR (“Social Determinants of Health”[Majr])) OR (“Glucocorticoids”[Mesh])) OR (“Tryptophan”[Mesh])) AND (“Depression”[Mesh] OR “Depressive Disorder”[Mesh]) Filters: from 2017—2020.

Ovid MEDLINE(R) and Epub Ahead of Print, In-Process, In-Data-Review & Other Non-Indexed Citations, Daily and Versions(R)

• exp *Depression/
• exp *Depressive Disorder/
• exp *”Social Determinants of Health”/
• exp *Tryptophan/
• exp *Glucocorticoids/
• exp *Neurology/
• exp *Genes/
• exp *Neurogenesis/
• exp *Neuronal Plasticity/
• exp *Kynurenine/
• exp *Genetics/
• exp *Neurogenic Inflammation/
• exp *Gastrointestinal Microbiome/
• exp *Genome-Wide Association Study/
• exp *Gene-Environment Interaction/
• exp *Depression/et [Etiology]
• exp *Depressive Disorder/et
• or/4-16   637368
• limit 22 to yr = “2017–Current”
• “cause* of depression”.mp.
• “cause* of depression”.ti.
• (cause adj3 (depression or depressive)).ti.
• (caus* adj3 (depression or depressive)).ti.

Appendix A.2. PsycInfo

(TITLE ( depression OR “ Depressive Disorder ”) AND TITLE (“ Social Determinants of Health ” OR tryptophan OR glucocorticoids OR neurology OR genes OR neurogenesis OR “ Neuronal Plasticity ” OR kynurenine OR genetics OR “ Neurogenic Inflammation ” OR “ Gastrointestinal Microbiome ” OR “ Genome-Wide Association Study ” OR “ Gene-Environment Interaction ” OR aetiology OR etiology )) OR TITLE ( cause* W/3 ( depression OR depressive )).

Author Contributions

O.R. was responsible for the design of the study and methodology undertaken. Despite P.T.’s involvement in YPMH, he had no role in the design of the study; P.T. was responsible for the conceptualization of the study. Validation was conducted by O.R. and J.F.M. Formal analysis (data charting) was undertaken by O.R. O.R. and P.T. were involved in the investigation, resource acquisition, and data presentation. The original draft preparation was undertaken by O.R. The writing was conducted by O.R., with review and editing by P.T. and J.F.M. Funding acquisition was undertaken by O.R. and P.T. All authors have read and agreed to the published version of the manuscript.

This research was funded by The William Templeton Foundation for Young People’s Mental Health, Cambridge Philosophical Society, and the Aviva Foundation.

Conflicts of Interest

The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Depression as a Psychological Disorder Essay

Introduction.

Depression is a popular mental condition that can affect anyone. It has various forms, symptoms, and ways of development, which may all be different for each person (Stringaris, 2017). The World Health Organization (2017) calculated in 2015 that 4.4% of the total world population suffers from depression, with 322 million unique cases registered worldwide (p. 8). Moreover, they concluded that since 2005 the number of people with depressive disorders increased by 18.4%, which “reflects the overall growth of the global population, as well as a proportionate increase in the age groups” (World Health Organization, 2017, p. 8). Thus, the topic of depression remains a scientific point of interest per the continuing growth of population numbers worldwide. Summarizing and evaluating the information that trusted journals have published on the topic of depression might help create a well-rounded review of the condition and the scientific community’s understanding of it.

The Present Definition of a Depressive Disorder

Depression can be defined as a disorder that affects a person’s mental health, resulting in a dampened emotional state for an extended time. It is an exhausting mental condition that affects people’s daily lives by influencing them towards adopting negative patterns of behavior (Lu, Li, Li, Wang, & Zhang, 2016). People with depression may respond to external stimuli dully and, thus, become unable to experience the same breadth of emotion that had previously been available to them. In turn, these circumstances lead to increased rates of suicide among those suffering from major depressive disorders, particularly among adolescents, making it a “potentially lethal” mental health condition (Stringaris, 2017, p. 1287). The World Health Organization (2017) distinguishes between depressive and anxiety disorders, outlining the fact that different circumstances cause the two problems. However, depression may be identified as retaining a leading position in mental health studies. This popularity may be due to its ability to be used as an umbrella term for different combinations of depressive symptoms.

The Background Mechanisms and Symptoms of Depression in Literature

The likely causes of depression can be gathered into a long list. Its lineup may include a person’s genetic predisposition, various environmental influences, hormonal fluctuations, and even traumatic life experiences. Initially, researchers even linked depressive disorders with a lack of serotonin, the absence which continues to be thought of as the leading cause of clinical depression (Cowen & Browning, 2015). However, no proven evidence regarding why people become depressed exists (World Health Organization, 2017). Nonetheless, hypotheses regarding chemical imbalances and disruptions of neural networks within the brain remain the process’s leading explanations (Cowen & Browning, 2015; Lu et al., 2016). Due to these continuing doubts within the scientific community, the most common identification for depression remains how a person behaves (Fried & Nesse, 2015). Therefore, while the origins of depression remain hidden, clinical practitioners continue paying close attention to how people reveal their illness to provide them with treatment.

Symptomatology is the mass of collected evidence regarding a person’s health. According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), a person should demonstrate at least five out of nine symptoms below to de considered depressed:

1. depressed mood; 2. markedly diminished interest or pleasure; 3. increase or decrease in either weight or appetite; 4. insomnia or hypersomnia; 5. psychomotor agitation or retardation; 6. fatigue or loss of energy; 7. feelings of worthlessness or inappropriate guilt; 8. diminished ability to think or concentrate, or indecisiveness; and 9. recurrent thoughts of death. (Fried & Nesse, 2015, p. 1-2).

While this list may not be considered final, it remains the basis for identifying depression. Nonetheless, it is essential to note that all people experience depression differently (Salk, Hyde, & Abramson, 2017). Furthermore, some symptoms may carry more weight during diagnosis than others (Fried, Epskamp, Nesse, Tuerlinckx, & Borsboom, 2016). Thus, the widely accepted DSM-5 standard relies on a person’s self-identification per their personal understanding of their behavior.

Treatment: Who and How

It may be appropriate to preface treatment options for depressive disorders with a highlight of groups that may be at risk. Research findings suggest that women report higher incidences of depression than men due to both their different socioeconomic positions and inherent “biological sex differences,” which link with hormonal changes, for example, different estrogen levels (Albert, 2015, p. 219; Mojtabai, Olfson, & Han, 2016). A paper by Salk et al. (2017) reports that this difference between the numbers of depressed men and women reaches its highest point during adolescence, evening out only after teenagers reach adulthood. Considering additional factors, such as “abuse, education and income,” may also help identify other population levels that could be susceptible to depression (Albert, 2015, p. 219). Thus, while women retain a higher possibility of becoming depressed, other factors that are independent of gender also play a role in deciding at-risk groups.

Depression’s treatment can merely attempt to correct people’s behavior, considering the hidden nature of its causes. Thus, antidepressants may be highlighted as remaining the most popular treatment option. The “pharmacological actions of drugs” continue to be the best currently available link to both treating the condition and examining what may cause it (Cowen & Browning, 2015, p. 158). However, the majority of antidepressants cause side effects that are equal to the symptoms of depression, for example, lessened emotional responsivity, fatigue, and suicidal tendencies (Fried & Nesse, 2015). This fact is particularly painful to consider in combination with the findings of a paper by Mojtabai et al. (2016) that states that treatment trends from “2005 to 2014” have remained unchanged (p. 6). Therefore, it may be assumed that the continuing lack of knowledge regarding the causes of depression may be preventing its treatment methods from progressing to new levels.

The Problem with Defining Depression

The scientific community may be moving towards rejecting using depression as an umbrella term. Instead, it could be showing a tendency to focus on people’s individual experiences. The ongoing research processes struggle to identify depression as either a sum of its symptoms or a separate condition (Fried & Nesse, 2015). Furthermore, most researchers cannot agree on whether the depressive disorder is a spectrum or a sequence of events (Stringaris, 2017). However, they admit that rejecting depression, as a term, would be harmful to mental health practice (Stringaris, 2017). Thus, when Stringaris (2017) asks, “What is depression?” it is not a rhetorical question, but rather a recognition of the current state of affairs (p. 1288). Therefore, the findings of researchers who attempt to categorize people by their population type, for example, Albert (2015), Mojtabai et al. (2016), and Salk et al. (2017), become problematic per their disregard for depression’s subgroups. The fact that people with different symptoms and magnitudes of depression can be considered ill could be a continuing research restriction.

Recognizing the existence of varying stages of depression should lead to questioning the proposed DSM-5 symptom-checker since it is the one on which most of the diagnoses are based. Both studies by Fried and Nesse (2015) and Fried et al. (2016) support the idea that personal experiences remain more critical during diagnosis than checklists. Haroz et al. (2017) further outline the DSM-5 as a western-oriented mental healthcare tool that does not carry the same effect for non-western populations. These facts may be in line with current research trends, as they seem to discourage using depression as an umbrella term. However, as identified by Stringaris (2017), this development could lead to either a perfection of existing clinical approaches or “vast confusion among clinicians and patients” (p. 1288). Thus, while these research papers could help define the future of depression awareness, the benefits of the foundation provided by the DSM-5 should not be rejected.

Existing Hindrances to Perfecting Treatment Methods

The used literature may indicate a continuing period of inactivity in developing new treatment methods for depression. This area of study remains mainly medicine-focused, full of side effects, and directed towards removing the illness’s symptoms rather than the sickness itself. The two existing brain-related and chemical explanations for depression may be the most traditional, but they too remain underdeveloped and under-tested. Lu et al. (2016) recognize that their cited and conducted experiments, which focus on rodents and mice, can have only a limited number of suggestions for treating human depression. However, the paper by Cowen and Browning (2015) that highlights the chemical serotonin as the catalyst for people’s “emotional processing” during treatment may hold serious meaning for future research (p. 160). Nonetheless, the continuing lack of answers regarding the causes of depression, its nature, and progress may pose the biggest problem in finding a cure.

The Future of Current Research Trends

The existing differences within the mental health scientific community may be driving the topic of depression in different directions. The statistics regarding the worldwide numbers of depressed people may become troublesome to consider since Haroz et al. (2017) claim that different cultures report depression differently. Thus, focusing on at-risk groups with an approach that raises awareness for mental health may be the future of depression studies (Mojtabai et al., 2016). Moreover, Stringaris (2017) urges researchers to “being open to the fact that both [depression’s] content may prove heterogeneous, and that its boundaries may need to shift” (p. 128). Thus, research still has to prove most facts about depression. However, a lack of definitive answers may mean a greater extent of flexibility when deciding the appropriate research and treatment methods.

The carried out literature review allowed outlining the major scientific trends in modern-day depression studies. Depression remains one of the most popularly studied mental health conditions, with researchers applying the term to people who show any combination of its many symptoms. However, the cause of the sickness remains unknown, which prevents researchers from predicting how it can progress. As such, depression studies retain a high amount of flexibility, which may be considered both a positive and negative thing. Thus, current trends focus on instead promoting different sides of depressive disorder studies, from determining at-risk groups to documenting brain processes during illness through conducting experiments. By doing so, researchers hope to understand the disease’s origins through testing various treatment methods. This development may expand the current understanding of depressive disorders’ different features. Therefore, modern depression research remains an ongoing process that hopes to better the quality of care provided to those suffering from the condition.

Albert, P. R. (2015). Why is depression more prevalent in women? Journal of Psychiatry & Neuroscience: JPN , 40 (4), 219-221. Web.

Cowen, P. J., & Browning, M. (2015). What has serotonin to do with depression? World Psychiatry , 14 (2), 158-160. Web.

Fried, E. I., & Nesse, R. M. (2015). Depression sum-scores don’t add up: Why analyzing specific depression symptoms is essential. BMC Medicine , 13 (1), 1-11. Web.

Fried, E. I., Epskamp, S., Nesse, R. M., Tuerlinckx, F., & Borsboom, D. (2016). What are ‘good’ depression symptoms? Comparing the centrality of DSM and non-DSM symptoms of depression in a network analysis. Journal of Affective Disorders , 189 , 314-320. Web.

Haroz, E. E., Ritchey, M., Bass, J. K., Kohrt, B. A., Augustinavicius, J., Michalopoulos, L.,… Bolton, P. (2017). How is depression experienced around the world? A systematic review of qualitative literature. Social Science & Medicine , 183 , 1-29. Web.

Lu, C., Li, Q., Li, Y., Wang, Y., & Zhang, Y. F. (2016). A short glance at the neural circuitry mechanism underlying depression. World Journal of Neuroscience , 6 (03), 184-192. Web.

Mojtabai, R., Olfson, M., & Han, B. (2016). National trends in the prevalence and treatment of depression in adolescents and young adults. Pediatrics , 138 (6), 1-10. Web.

Salk, R. H., Hyde, J. S., & Abramson, L. Y. (2017). Gender differences in depression in representative national samples: Meta-analyses of diagnoses and symptoms. Psychological Bulletin , 143 (8), 783. Web.

Stringaris, A. (2017). What is depression? Journal of Child Psychology and Psychiatry , 58 (12), 1287-1289. Web.

World Health Organization. (2017). Depression and other common mental disorders: Global health estimates . Geneva, Switzerland: World Health Organization.

• Chicago (A-D)
• Chicago (N-B)

IvyPanda. (2024, February 20). Depression as a Psychological Disorder. https://ivypanda.com/essays/depression-as-a-psychological-disorder/

"Depression as a Psychological Disorder." IvyPanda , 20 Feb. 2024, ivypanda.com/essays/depression-as-a-psychological-disorder/.

IvyPanda . (2024) 'Depression as a Psychological Disorder'. 20 February.

IvyPanda . 2024. "Depression as a Psychological Disorder." February 20, 2024. https://ivypanda.com/essays/depression-as-a-psychological-disorder/.

1. IvyPanda . "Depression as a Psychological Disorder." February 20, 2024. https://ivypanda.com/essays/depression-as-a-psychological-disorder/.

Bibliography

IvyPanda . "Depression as a Psychological Disorder." February 20, 2024. https://ivypanda.com/essays/depression-as-a-psychological-disorder/.

• DSM-5 and Introduction of Behavioral Addictions
• Substance Use Disorders in Case Studies: A DSM-5 Analysis
• The DSM-5 Criteria for Posttraumatic Stress Disorder
• Diagnostic of Mental Disorders: The Case Study
• Clinical Diagnosis and Treatment
• Major Depressive Disorder: Diagnosis and Treatment
• Diagnostic and Statistical Manual of Mental Disorders
• Major Depressive Disorder in African Americans
• Atypical Depression Symptoms and Treatment
• Mood Disorder as a DSM–IV–TR Diagnosis
• Accelerated Resolution Therapy Application
• The Eye Movement Desensitization and Reprocessing
• Sociopaths and Psychopaths: Similarities and Differences
• Importance of Mental Health Promotion in Society
• The Architecture of Sustainable Happiness

• Bipolar Disorder
• Therapy Center
• When To See a Therapist
• Types of Therapy
• Best Online Therapy
• Best Couples Therapy
• Best Family Therapy
• Managing Stress
• Sleep and Dreaming
• Understanding Emotions
• Self-Improvement
• Healthy Relationships
• Student Resources
• Personality Types
• Verywell Mind Insights
• 2023 Verywell Mind 25
• Mental Health in the Classroom
• Editorial Process
• Meet Our Review Board
• Crisis Support

7 Depression Research Paper Topic Ideas

Nancy Schimelpfening, MS is the administrator for the non-profit depression support group Depression Sanctuary. Nancy has a lifetime of experience with depression, experiencing firsthand how devastating this illness can be.

Cara Lustik is a fact-checker and copywriter.

In psychology classes, it's common for students to write a depression research paper. Researching depression may be beneficial if you have a personal interest in this topic and want to learn more, or if you're simply passionate about this mental health issue. However, since depression is a very complex subject, it offers many possible topics to focus on, which may leave you wondering where to begin.

If this is how you feel, here are a few research titles about depression to help inspire your topic choice. You can use these suggestions as actual research titles about depression, or you can use them to lead you to other more in-depth topics that you can look into further for your depression research paper.

What Is Depression?

Everyone experiences times when they feel a little bit blue or sad. This is a normal part of being human. Depression, however, is a medical condition that is quite different from everyday moodiness.

Your depression research paper may explore the basics, or it might delve deeper into the  definition of clinical depression  or the  difference between clinical depression and sadness .

What Research Says About the Psychology of Depression

Studies suggest that there are biological, psychological, and social aspects to depression, giving you many different areas to consider for your research title about depression.

Types of Depression

There are several different types of depression  that are dependent on how an individual's depression symptoms manifest themselves. Depression symptoms may vary in severity or in what is causing them. For instance, major depressive disorder (MDD) may have no identifiable cause, while postpartum depression is typically linked to pregnancy and childbirth.

Depressive symptoms may also be part of an illness called bipolar disorder. This includes fluctuations between depressive episodes and a state of extreme elation called mania. Bipolar disorder is a topic that offers many research opportunities, from its definition and its causes to associated risks, symptoms, and treatment.

Causes of Depression

The possible causes of depression are many and not yet well understood. However, it most likely results from an interplay of genetic vulnerability  and environmental factors. Your depression research paper could explore one or more of these causes and reference the latest research on the topic.

For instance, how does an imbalance in brain chemistry or poor nutrition relate to depression? Is there a relationship between the stressful, busier lives of today's society and the rise of depression? How can grief or a major medical condition lead to overwhelming sadness and depression?

Who Is at Risk for Depression?

This is a good research question about depression as certain risk factors may make a person more prone to developing this mental health condition, such as a family history of depression, adverse childhood experiences, stress , illness, and gender . This is not a complete list of all risk factors, however, it's a good place to start.

The growing rate of depression in children, teenagers, and young adults is an interesting subtopic you can focus on as well. Whether you dive into the reasons behind the increase in rates of depression or discuss the treatment options that are safe for young people, there is a lot of research available in this area and many unanswered questions to consider.

Depression Signs and Symptoms

The signs of depression are those outward manifestations of the illness that a doctor can observe when they examine a patient. For example, a lack of emotional responsiveness is a visible sign. On the other hand, symptoms are subjective things about the illness that only the patient can observe, such as feelings of guilt or sadness.

An illness such as depression is often invisible to the outside observer. That is why it is very important for patients to make an accurate accounting of all of their symptoms so their doctor can diagnose them properly. In your depression research paper, you may explore these "invisible" symptoms of depression in adults or explore how depression symptoms can be different in children .

How Is Depression Diagnosed?

This is another good depression research topic because, in some ways, the diagnosis of depression is more of an art than a science. Doctors must generally rely upon the patient's set of symptoms and what they can observe about them during their examination to make a diagnosis. 

While there are certain  laboratory tests that can be performed to rule out other medical illnesses as a cause of depression, there is not yet a definitive test for depression itself.

If you'd like to pursue this topic, you may want to start with the Diagnostic and Statistical Manual of Mental Disorders (DSM). The fifth edition, known as DSM-5, offers a very detailed explanation that guides doctors to a diagnosis. You can also compare the current model of diagnosing depression to historical methods of diagnosis—how have these updates improved the way depression is treated?

Treatment Options for Depression

The first choice for depression treatment is generally an antidepressant medication. Selective serotonin reuptake inhibitors (SSRIs) are the most popular choice because they can be quite effective and tend to have fewer side effects than other types of antidepressants.

Psychotherapy, or talk therapy, is another effective and common choice. It is especially efficacious when combined with antidepressant therapy. Certain other treatments, such as electroconvulsive therapy (ECT) or vagus nerve stimulation (VNS), are most commonly used for patients who do not respond to more common forms of treatment.

Focusing on one of these treatments is an option for your depression research paper. Comparing and contrasting several different types of treatment can also make a good research title about depression.

A Word From Verywell

The topic of depression really can take you down many different roads. When making your final decision on which to pursue in your depression research paper, it's often helpful to start by listing a few areas that pique your interest.

From there, consider doing a little preliminary research. You may come across something that grabs your attention like a new study, a controversial topic you didn't know about, or something that hits a personal note. This will help you narrow your focus, giving you your final research title about depression.

Remes O, Mendes JF, Templeton P. Biological, psychological, and social determinants of depression: A review of recent literature . Brain Sci . 2021;11(12):1633. doi:10.3390/brainsci11121633

National Institute of Mental Health. Depression .

American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition . American Psychiatric Association.

National Institute of Mental Health. Mental health medications .

Ferri, F. F. (2019). Ferri's Clinical Advisor 2020 E-Book: 5 Books in 1 . Netherlands: Elsevier Health Sciences.

By Nancy Schimelpfening Nancy Schimelpfening, MS is the administrator for the non-profit depression support group Depression Sanctuary. Nancy has a lifetime of experience with depression, experiencing firsthand how devastating this illness can be.  

• Dissertation
• PowerPoint Presentation
• Book Report/Review
• Research Proposal
• Math Problems
• Proofreading
• Movie Review
• Cover Letter Writing
• Personal Statement
• Nursing Paper
• Argumentative Essay
• Research Paper

How To Write A Strong Essay On Depression?

Table of Contents

Looking for useful information that will help you write a powerful essay on depression? You’ve come to the right place, then!

Depression is a worldwide spread disease that negatively affects how people feel, the way they think, and how they act. It is also the leading cause of disability. There are estimates that more than 300 million people are affected by depression globally, and this condition is also one of the most common mental disorders in the USA.

No wonder depression essay is a typical assignment for high school and college students. The goal of writing about this mental condition is to increase awareness among young people about mental health and help them find solutions to this problem.

In this guide, you will find all the necessary information for writing the best essays on this topic.

Depression essay: what’s the deal?

At some point in our lives, we all may experience symptoms like sadness, loss of interest, lack of pleasure from performing daily activities, etc.

For most people, these symptoms are a completely normal response to unpleasant or stressful events that they experience, for example, romantic relationships failures or financial issues.

Negative feelings are usually painful and overwhelming, but as time goes by, they become less intense and disappear.

But if these feelings persist, they may affect people’s life substantially and result in depression.

In recent decades, clinical depression has reached epidemic proportions and is widespread in the suburbs inner cities, farms, refugee camps, boardrooms, and classrooms, and women are more likely to be depressed than man.

Recent research reveals that the United States is the most depressed country in the world.

When writing an essay about this mental illness, you need to examine different aspects. For example, you may write a postpartum depression essay or explore how this mental condition affects the brain, personality, and physical health.

The choice of topics is endless, but you should follow standard writing requirements when working on your projects. Let’s discuss some important steps of writing an essay about mental disorders in detail.

Depression research paper outline: a brief how-to

Many students skip this stage in the writing process and as a result, may waste a lot of time when doing research and actually writing.

Creating a working outline for your project is an essential step that will help you stay focused and increase your overall productivity. Never skip this crucial step if you want to succeed.

Here are some tips on how you can do it right.

• Choose a topic for your research and do some preliminary reading. Search for some interesting facts and try to think about new ways to address your topic. Scan some articles and look for knowledge gaps.
• Take notes when you see an interesting quote and create a list of your sources. You can use them as references in your essay. Keep all the information you have gathered in one place.
• Write down the objective of your essay in one sentence. Think about the outcome you want to achieve when other people read your essay.
• Look through your notes and make a list of all the important points you want to make. Use brainstorming techniques and write down all ideas that pop into your head.
• Review the points and create a thesis statement for depression research paper or essay.
• Organize the list of points to create a structure of your essay . Put the points in a logical order. Check all aspects to make sure that each of them is relevant to your objective.
• Revise all your points and try to put your outline in a standard format: numbered or bulleted list.

Depression essay introduction: how to start?

The introduction of your essay should provide some context and prepare your readers for the arguments you would present next.

Start your introduction with an attention grabber to engage your audience. It can be a provocative question, statistics, an anecdote, an interesting fact, etc.

Introduce your specific topic and provide some context to help your readers understand your paper. For example, you can define some key terms.

Finish your introduction with a strong thesis statement that clearly and concisely states the central argument or the purpose of your paper.

e.g., Students who drop out of a high school before graduation are more susceptible to depression and anxiety and have a higher risk of facing mental and physical health problems later in life.

You may also briefly outline the major points of your paper to help your audience follow your argument.

Depression essay conclusion: what should be included?

The conclusion is the last chance to impress your readers so it can be the most challenging part of an essay to write.

It should give your paper a sense of completeness and answer the question, “so what?”

You need to restate your main claim and tie that claim to a larger discussion. Don’t introduce any new ideas or subtopics here.

You can conclude your paper using one of the following strategies:

• Call for a specific action.
• Outline next steps for other researchers.
• Speak about future implications.
• Compare different situations or issues.
• Use a quotation.
• Ask a provocative question.

The use of depression essay example

A good essay example may help you understand how your project must be written. You can find a lot of essay examples online or order a well-written example from a professional writer.

You should read it and analyze what strategies and techniques are used to convey the main ideas and make an impression on readers.

Besides, you can get a better understanding of how you can structure your paper and what transitions you can use to ensure a logical flow of ideas.

Essay on depression: what to cover?

Writing about depression in college essay can involve a lot of different topics, especially those connected with the epidemic of mental disorders in teens.

For example, you may write causes of teenage depression essay and discuss multiple factors that create chemical imbalances in the human brain which may result in mental disorders and lead to such symptoms like anger, irritability, and agitation:

• Biological factors – family history of mental disorders.
• Social factors – loneliness and isolation, lack of meaningful relationships with family or peers.
• Behavioral factors – alcohol or drug abuse.
• Psychological factors – early childhood trauma, recent stressful experiences like a death in the family.

TOP-10 depression essay topics

• Effects of mood disorders on physical health.
• Causes of depression among teens.
• Compare depression and bipolar disorder.
• Neurodegenerative effects of long-term depression.
• Mental disorders and personality changes in adults.
• Impact of psychological stress on mental disorders.
• Teen depression and suicide.
• Depression symptoms in children and adults.
• Are we witnessing an epidemic of serious mood disorders?
• Digital media and mental disorders in children.

Argumentative essay on depression: how to prove you’re right?

Argumentative essay on depression is a more complex task because you need to take a stance and create a convincing argument to persuade your readers and make them accept your point of view or take a specific action.

You need compelling evidence to support your claims and main points.

Consult credible online sources, for example, a website of the American Psychiatric Association, to find some facts or statistics about mental disorders or news about current research on the topic.

Review some statistics which you can use to support your argument.

• According to estimates, about 15% of adults experience depressive episodes in their lifetime.
• About 5% of the US population experience seasonal depression every year.
• The most “depressed” countries in the world are the USA, France, the Netherlands, Ukraine, and Colombia.
• Japan has one of the lowest depression rates in the world, but it has one of the highest suicide rates, which is one of the leading causes of death among Japanese teens.
• 4.8% of men and 8.5% of women suffer from depression in the USA.
• The median age of people experiencing a major depressive episode is 32.
• More than 44,000 American commit suicide each year and it’s the 2nd leading cause of death for young people aged from 15 to 24.

Argumentative essay topics about depression

• Is there any correlation between burnout, depression, and anxiety?
• How to deal with a crisis when living with mental disorders?
• Is it common to have both anxiety and depression at the same time?
• Can sleep deprivation cause mental disorders?
• Is there any relationship between the consumption of certain food and mental disorders?
• Can food help with overcoming anxiety?
• Social media obsession and mental health issues.
• Why do a lot of teens struggle with mental disorders?
• Can exercise treat mental health issues?
• How can we tell the difference between grief and depression?

Feel free to choose any of these interesting topics and write your own depression essay.

Although mental disorders are a complicated thing to write about, you are much likely to successfully cope with this challenging task if you follow our easy guidelines.

Depressed with the task to write depression? Forget the anxiety! Order your paper within three clicks and enjoy the bright side of life!

The Basics Of Choosing Genetic Research Paper Topics

Structuring of an argumentative essay on euthanasia

What Is Spatial Order And How To Use It In Essay?

Home / Essay Samples / Health / Depression / Exploring the Depths of Depression: An Argumentative View

Exploring the Depths of Depression: An Argumentative View

• Category: Health
• Topic: Depression , Mental Illness , Suicide

Pages: 1 (658 words)

• Downloads: -->

--> ⚠️ Remember: This essay was written and uploaded by an--> click here.

Found a great essay sample but want a unique one?

are ready to help you with your essay

You won’t be charged yet!

Alcohol Abuse Essays

Drug Addiction Essays

Drunk Driving Essays

Drugs Essays

Smoking Essays

Related Essays

We are glad that you like it, but you cannot copy from our website. Just insert your email and this sample will be sent to you.

By clicking “Send”, you agree to our Terms of service  and  Privacy statement . We will occasionally send you account related emails.

Your essay sample has been sent.

In fact, there is a way to get an original essay! Turn to our writers and order a plagiarism-free paper.

samplius.com uses cookies to offer you the best service possible.By continuing we’ll assume you board with our cookie policy .--> -->