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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 often resolve …

  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 days …

  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. Seasonal Affective Disorder - Psychology Today

    Feb 28, 2022 · Seasonal affective disorder, or SAD, is a type of recurrent major depressive disorder in which episodes of depression occur during the same season each year.

  7. Major Depressive Disorder with a Seasonal Pattern - NAMI

    Major Depressive Disorder with a Seasonal Pattern (formerly known as seasonal affective disorder, or SAD) is characterized by recurrent episodes of depression in late fall and winter, alternating with …

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

    Apr 24, 2023 · Seasonal Affective Disorder (SAD) is triggered by changes in seasons. This form of depression usually occurs during the fall and winter months when there is less sunlight, and the days …

  9. Explainer | What is SAD? Why seasonal affective disorder makes you …

    Jan 10, 2026 · Beat the winter blues – and even summer SAD – with expert tips on light therapy, diet and mindfulness for better seasonal mental health.

  10. Seasonal affective disorder - Wikipedia

    Bright light therapy is a common treatment for seasonal affective disorder and for circadian rhythm sleep disorders.