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  1. Depression (major depressive disorder) - Symptoms and causes

    Oct 14, 2022 · 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 …

  2. Clinical Depression (Major Depressive Disorder): Symptoms

    Nov 30, 2022 · Clinical depression, also known as major depressive disorder (MDD), is a mental health condition that causes a persistently low or depressed mood and a loss of interest in activities that …

  3. Major depressive disorder - Wikipedia

    Major depressive disorder (MDD), also known as clinical depression, is a mental disorder [10] characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or …

  4. 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.

  5. Depression - National Institute of Mental Health (NIMH)

    Everyone feels sad or low sometimes, but these feelings usually pass with time. Depression (also called major depressive disorder or clinical depression) is different. It can cause severe symptoms that …

  6. Major Depressive Disorder | National Alliance on Mental Illness ... - NAMI

    When more severe symptoms like lack of energy and hopelessness develop in multiple areas of a person’s life along with persistent sadness over at least two weeks, they may be experiencing a …

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  7. Major depression: MedlinePlus Medical Encyclopedia

    Apr 19, 2025 · Depression is feeling sad, blue, unhappy, or down in the dumps. Most people feel this way once in a while. Major depression is a mood disorder. It occurs when feelings of sadness, loss, …

  8. Major Depressive Disorder - MentalHealth.com

    Aug 7, 2025 · Major Depressive Disorder (MDD) is a common but serious mental health condition. This is more than just feeling sad or going through a rough patch; it’s a medical illness that causes a …

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  9. Major Depressive Disorder – Understanding Psychological Disorders

    According to the DSM-5, the defining symptoms of major depressive disorder (MDD) include “depressed mood most of the day, nearly every day” (feeling sad, empty, or hopeless or appearing tearful to …

  10. Major Depression (Clinical Depression) Symptoms, Treatments, and …

    Sep 27, 2024 · A constant sense of hopelessness and despair is a sign you may have major depression, also known as clinical depression.