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  1. Seasonal affective disorder (SAD) - Mayo Clinic

    Dec 14, 2021 · If you're like most people with SAD, your symptoms start in the fall and continue into the winter months, sapping your energy and making you feel moody. These symptoms …

  2. SAD Definition & Meaning - Merriam-Webster

    The meaning of SAD is affected with or expressive of grief or unhappiness : downcast. How to use sad in a sentence.

  3. Seasonal Affective Disorder - National Institute of Mental Health …

    Information about seasonal affective disorder (SAD), a type of depression, including signs and symptoms, how SAD is diagnosed, causes, and treatment options.

  4. Seasonal Affective Disorder - Johns Hopkins Medicine

    What is seasonal affective disorder? Seasonal affective disorder (SAD) is a type of depression. It happens during certain seasons of the year, most often fall or winter. It is thought that shorter …

  5. Seasonal affective disorder - Wikipedia

    Seasonal affective disorder (SAD) is a mood disorder subset in which people who typically have normal mental health throughout most of the year exhibit depressive symptoms at the same …

  6. Seasonal Affective Disorder (SAD) - Psychiatry.org

    Learn about Seasonal Affective Disorder including symptoms, diagnosis and treatment. Seasonal affective disorder is a form of depression also known as SAD, seasonal depression or winter …

  7. Seasonal Depression - Symptoms, Causes, Treatments

    Apr 30, 2024 · Seasonal depression, also known as seasonal affective disorder (SAD), is a mood disorder that happens every year at about the same time. It usually starts in fall or winter and …

  8. What doctors wish patients knew about seasonal affective disorder

    Oct 31, 2025 · Seasonal affective disorder is more than just the winter blues. It is a form of depression linked to changing seasons. Two psychiatrists share more.

  9. How the psychiatrist who discovered SAD deals with seasonal …

    Nov 6, 2025 · How to avoid seasonal depression, according to the expert who discovered it Norman Rosenthal uses light in his home to help with seasonal affective disorder. Spoiler …

  10. Seasonal Affective Disorder - What is SAD? | SAMHSA

    Apr 24, 2023 · Seasonal affective disorder, or SAD, is a condition in which some people experience a serious mood change when the seasons change. Those mood changes could be …