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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, …

  2. 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 …

  3. 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.

  4. 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 …

  5. Major Depression (Clinical Depression) Symptoms, Treatments, …

    Sep 27, 2024 · WebMD gives an overview of clinical -- or major -- depression, including its causes, symptoms, and treatment.

  6. 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 …

  7. 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, …

  8. Major Depressive Disorder | National Alliance on Mental Illness

    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. What is Depression? | SAMHSA

    Apr 24, 2023 · Major Depressive Disorder, also known as clinical depression, is where people feel that a consistent dark mood is consuming them. It can inhibit daily functions and cause them …

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

    Jul 5, 2025 · Major depressive disorder is a mood disorder that interferes with daily life. Learn about symptoms, causes, and treatment.