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

    Oct 14, 2022 · Depression is a common, serious, and treatable condition. If you're experiencing depression, you're not alone. It honestly affects people of all ages and races and biological …

  2. 14 common signs and symptoms of depression - Medical News …

    Jul 11, 2025 · Depression is more than just feeling sad; it is a medical condition that can cause symptoms like hopelessness, irritability, a loss of interest in activities, tiredness, appetite …

  3. Depression: Causes, Symptoms, Types & Treatment

    Jan 13, 2023 · There are several types of depressive disorders. Clinical depression, or major depressive disorder, is often just called “depression.” It’s the most severe type of depression. …

  4. Depression: What It Is, Symptoms, Causes, Treatment, and More

    Oct 27, 2023 · Depression is classified as a mood disorder. It may be described as feelings of sadness, loss, or anger that interfere with a person’s everyday activities. It’s also fairly common.

  5. Depression (mood) - Wikipedia

    People with depression may experience sadness, feelings of dejection or lack of hope, difficulty in thinking and concentration, hypersomnia or insomnia, overeating or anorexia, or suicidal …

  6. Psychiatry.org - What Is Depression?

    Depression (major depressive disorder) is a common and serious mental disorder that negatively affects how you feel, think, act, and perceive the world. Nearly three in ten adults (29%) have …

  7. 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.

  8. Major Depressive Disorder: Symptoms, Causes, Treatment

    Sep 7, 2025 · Depression is a common and serious mood disorder that impacts the way an individual feels, thinks, and acts on a daily basis. It also goes by the name major depressive …

  9. Depression - MedlinePlus

    Jun 30, 2025 · Depression is more than a feeling of being sad or irritable for a few days. It's a serious mood disorder. As one of the most common mental disorders in the United States, …

  10. Major Depressive Disorder | National Alliance on Mental Illness

    A diagnosis of major depressive disorder requires two weeks of depressed mood or loss of interest in daily activities plus at least 5 of these symptoms that cause a decrease in the …