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  1. Seasonal affective disorder (SAD) - Mayo Clinic

    Dec 14, 2021 · Take signs and symptoms of seasonal affective disorder (SAD) seriously. As with other types of depression, SAD can get worse and lead to problems if it's not treated.

  2. Seasonal Affective Disorder - National Institute of Mental ...

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

  3. 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.

  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. Seasonal affective disorder - Wikipedia

    SAD is usually more common in the fall/winter (Winter SAD), though it may occur during the spring/summer (Spring SAD). Winter-onset SAD is more common and is often characterized by …

  6. Seasonal Affective Disorder: The Science of SAD - Pfizer

    2 days ago · For some people, the start of winter can bring the onset of depression, fatigue, and agitation. These symptoms can be severe enough to interfere with day-to-day life. This may be more …

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

    Apr 24, 2023 · Seasonal affective disorder, or SAD, is a condition in which some people experience a significant mood change when the seasons change. SAD is not considered a separate disorder but is …

  8. 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.

  9. Sad: Definition, Meaning, and Examples sad - usdictionary.com

    May 13, 2025 · As an adjective, "sad" primarily refers to feeling or showing unhappiness or sorrow. This is its most common usage, applied to both people and situations. It also describes something that …

  10. Seasonal Depression - Symptoms, Causes, Treatments

    Apr 30, 2024 · Do the bleak winter months drop you into a depression? Maybe you have seasonal depression, also known as seasonal affective disorder or SAD.