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  1. Seasonal affective disorder (SAD) - Symptoms & causes - 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. SAD | English meaning - Cambridge Dictionary

    SAD definition: 1. unhappy or sorry: 2. If something looks sad, it looks worse than it should because it is not…. Learn more.

  6. Easing Seasonal Depression: 14 Tips - Everyday Health

    Sep 22, 2022 · SAD is a form of depression triggered by changes in daylight and weather that occur primarily in the fall and winter. Experts aren’t certain why some people experience SAD, …

  7. SAD definition and meaning | Collins English Dictionary

    If you are sad, you feel unhappy, usually because something has happened that you do not like. The relationship had been important to me and its loss left me feeling sad and empty. I'm sad …

  8. What doctors wish patients knew about seasonal affective disorder

    Oct 31, 2025 · When the days grow shorter and temperatures drop, millions of people find themselves grappling with the “winter blues.” This is known as seasonal affective disorder, …

  9. Seasonal Affective Disorder: SAD Symptoms, Causes, Self-Care

    Feb 3, 2026 · Learn about the symptoms and causes of SAD or seasonal depression—and how to feel better. What is seasonal affective disorder (SAD)? Seasonal affective disorder (SAD) is a …

  10. Seasonal Affective Disorder | Blog | Loyola Medicine

    Nov 23, 2023 · But sometimes, they can signify a more serious condition called seasonal affective disorder (SAD). “Seasonal affective disorder is a type of depression that lasts four to five …