Library
In-depth articles
Reviewed by Shariq Refai, MD, MBA·Updated March 15, 2026·25 articles
Every long-form piece on DepressionResource.org in one place. Each article is written in plain language, dated, and reviewed by a board-certified psychiatrist against current clinical guidelines. Use this page as a map of the site's deep coverage of depression, its treatment, and the screens used to recognize it.
Showing 25 of 25 articles
Section
Topics
Background pieces on what depression is, who it affects, and how it shows up across the lifecycle.
Topic
Depression and alcohol
Depression and heavy alcohol use feed each other. Treating one without addressing the other rarely works. Both improve when they are treated together.
About 8 minutesReviewedTopic
Depression and sleep
Sleep and depression are tightly linked in both directions. Treating sleep is one of the most reliable ways to treat depression, and treating depression usually improves sleep.
About 8 minutesReviewedTopic
Depression in men
Depression in men is diagnosed less often, presented differently, and ends in suicide far more often than depression in women. The same treatments work; the path to them is harder.
About 7 minutesReviewedTopic
Depression in older adults
Depression in older adults is common, often mistaken for normal aging or for dementia, and treatable when it is recognized. The suicide rate in adults aged 75 and older is the highest of any age group in the United States.
About 8 minutesReviewedTopic
Depression in teens
Adolescent depression is common, often missed, and treatable. The presentation can look like irritability and withdrawal more than sadness. The risk of suicide is real and is one of the leading causes of death in this age group.
About 8 minutesReviewedTopic
Depression in women
Women are about twice as likely as men to be diagnosed with major depressive disorder. The reasons are partly biological, partly social, and partly diagnostic. The treatments work; the timing and choice often shift across the reproductive years.
About 8 minutesReviewedTopic
Depression statistics in 2026
Roughly one in five U.S. adults meets criteria for a depressive disorder at some point in life. About 8 percent of adults had a major depressive episode in the past year. The numbers are higher than they were a decade ago, especially in young adults.
About 7 minutesReviewedGUIDE
Depression vs. sadness: what’s the difference?
Sadness and depression are not the same thing, but they are often confused, partly because depression includes sadness as one of its symptoms. The difference matters because one is a normal human emotion that does not require treatment, and the other is a clinical condition that often does.
About 10 minutesReviewedGUIDE
How long does depression last?
The honest answer is that it depends, and what it depends on is something a clinician can usually estimate after a careful evaluation. Most untreated major depressive episodes last six to nine months. Most treated episodes show clear improvement within weeks and full recovery within months. Some episodes are shorter. Some are longer. The variables are knowable.
About 12 minutesReviewedGUIDE
I was just diagnosed with depression. What now?
Most people who are told they have depression do not feel relieved in that moment. The diagnosis can feel large, vague, and slightly unreal. It can also feel like a relief, because something difficult finally has a name. Either reaction is normal.
About 12 minutesReviewedGUIDE
My partner has depression. How can I help?
Watching someone you love disappear into depression is one of the hardest experiences in a close relationship. The first thing worth knowing is that the most useful things you can do are usually small. Show up steadily. Help with the next concrete step. Ask directly when needed. Take care of yourself for the long stretch. You are not expected to be a therapist. You are not expected to fix this.
About 13 minutesReviewedGUIDE
What causes depression?
What causes depression is rarely a single factor. The honest answer involves a mix of biology, life history, current circumstances, and medical contributors, weighted differently for every person. That is not a dodge. It is the actual science.
About 13 minutesReviewedGUIDE
When should I see a doctor for depression?
The threshold for seeing a clinician about depression is lower than most people think. A common reason people wait is the belief that they need to be sure they have depression before they sit down with someone. That logic is backwards. The point of the appointment is to find out.
About 11 minutesReviewed
Section
Treatment
In-depth, clinician-reviewed guides to medications, therapy, and procedural treatments for depression.
Treatment
Antidepressant comparison
There is no single best antidepressant. There are several first-line options that work for most people, and a few patterns of fit that experienced prescribers use to match a medication to a person.
About 12 minutesReviewedTreatment
Antidepressant withdrawal and discontinuation
Antidepressant discontinuation symptoms are common, real, and not the same as addiction. They are also usually preventable with a slow taper.
About 9 minutesReviewedTreatment
CBT vs DBT for depression
CBT is the standard first-line therapy for depression. DBT was built for chronic suicidality and emotional dysregulation. Both can help. They are not the same tool.
About 7 minutesReviewedTreatment
Exercise for depression
Exercise has more evidence than almost any other self-care intervention for depression. The amount that helps is smaller than most people expect. The hardest part is starting.
About 7 minutesReviewedTreatment
Ketamine and esketamine for depression
Ketamine and its FDA-approved nasal form esketamine work fast, often within hours to days, for depression that has not responded to standard antidepressants. They also need to be delivered carefully and maintained over time.
About 9 minutesReviewedTreatment
Light therapy for depression
Bright light therapy is a low-cost, well-tolerated treatment with strong evidence in seasonal depression and growing evidence in non-seasonal depression. The dose, timing, and equipment matter.
About 7 minutesReviewedTreatment
SSRI side effects
Most SSRI side effects are mild, time-limited, and worth getting through. A small number are worth knowing about and acting on.
About 9 minutesReviewedTreatment
Stopping antidepressants
Stopping an antidepressant is a clinical decision, not a personal preference about willpower. It needs a plan, a timeline, and a clinician who knows your full history.
About 8 minutesReviewedTreatment
Therapy types for depression
Several types of psychotherapy have strong evidence in depression. Most produce roughly equivalent results when delivered well. Choosing among them is more about fit than about hierarchy.
About 8 minutesReviewedTreatment
TMS for depression
Transcranial magnetic stimulation is an FDA-cleared, non-drug, non-surgical treatment for depression that has not responded to at least one antidepressant. About half of patients show a meaningful response and about a third reach remission.
About 8 minutesReviewed
Section
Types
Long-form looks at specific patterns of depression that deserve their own treatment of the literature.
Type
High-functioning depression
High-functioning depression is not a DSM diagnosis. It is shorthand for a real pattern: someone who continues to meet daily obligations while privately experiencing the symptoms of depression. The work gets done. The mood and the inner experience do not.
About 7 minutesReviewed
Section
Screening tools
Validated screens you can take on the page, with plain-language scoring.
Free depression screen
Depression test (PHQ-9)
The PHQ-9 is the most widely used depression screen in primary care and mental health clinics. Nine questions, two minutes, and a number that maps to what to do next.
About 6 minutesReviewed
About this library
The articles indexed here are written for readers, not search engines. Each one is grounded in the current edition of the DSM-5-TR, the American Psychiatric Association practice guidelines, NICE depression guidance, and the original trials and meta-analyses cited at the bottom of every page. See our editorial standards, medical review process, and sources and evidence for how this work is produced and reviewed.
For shorter reference pages, see the glossary, the symptoms hub, and the types of depression hub. For frequently asked questions, see the depression FAQ.
Reviewed by Shariq Refai, MD, MBA. Last reviewed March 15, 2026.