
Depression (major depressive disorder) - Symptoms and causes
Mar 14, 2026 · 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 …
Depression: Causes, Symptoms, Types & Treatment
Overview What is depression? Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest in things and activities you once enjoyed. It can also cause difficulty with …
Depressive disorder (depression) - World Health Organization (WHO)
Depressive disorder (also known as depression) is a common mental disorder. It involves a depressed mood or loss of pleasure or interest in activities for long periods of time. Depression is different from …
Depression - National Institute of Mental Health (NIMH)
Learn about NIMH research on depression. Find resources on the signs and symptoms of depression, types, and potential treatments and therapies.
What Is Depression? - Psychiatry.org
Depression (major depressive disorder) is a common and serious medical illness that negatively affects how you feel, the way you think and how you act. Fortunately, it is also treatable.
Depression: Causes, symptoms, treatment, and more
Apr 25, 2025 · Depression is a common mental health condition that involves low mood and other symptoms. Learn about the types, causes, treatment options, and more.
What is Depression? - SAMHSA
Apr 24, 2023 · Depression is a disorder of the brain. It is a serious mental illness that is more than just a feeling of being "down in the dumps" or "blue" for a few days.
Depression Overview - Harvard Health
Mar 8, 2026 · What is depression? Depression is more than just a passing blue mood, a bad day, or temporary sadness. The most common symptom is a low mood that can sometimes appear as …
Major Depression - Johns Hopkins Medicine
Depression is a serious mood disorder. It touches every part of your life and is caused by a chemical imbalance in your brain. Treatment involves medicine and counseling.
Depression Center: Symptoms, Causes, Medications, and Therapies
An estimated 19 million American adults are living with major depression. Here you'll find in-depth depression information including symptoms, medications, and therapy.