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  1. 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 …

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

    Oct 14, 2022 · 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 …

  3. 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 …

  4. Depression (Major Depressive Disorder): Symptoms and More

    Jul 5, 2025 · Major depressive disorder (MDD) is a common mood disorder characterized by persistent sadness and a loss of interest in activities, impacting mood, behavior, and physical …

  5. Major Depressive Disorder: Symptoms, Causes, and Treatment …

    6 days ago · An analysis of major depressive disorder, covering diagnostic criteria, prevalence statistics across demographics, and evidence-based treatments.

  6. WebMD Depression Guide: Major Depressive Disorder

    Major depressive disorder (MDD), or clinical depression, is marked by ever-present feelings of hopelessness that make it hard to eat, sleep, work, study, and enjoy the company of friends …

  7. Major Depressive Disorder (MDD) - 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 …

  8. 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 …

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

    Depression (also called major depressive disorder or clinical depression) is different. It can cause severe symptoms that affect how you feel, think, and handle daily activities, such as sleeping, …

  10. 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 …