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  1. Seasonal affective disorder (SAD) - Mayo Clinic

    Dec 14, 2021 · In most cases, seasonal affective disorder (SAD) symptoms appear during late fall or early winter and go away during the sunnier days of spring and summer. Less commonly, people …

  2. Seasonal affective disorder (SAD) - Mayo Clinic

    Dec 14, 2021 · Light therapy is one of the first line treatments for fall-onset SAD. It generally starts working in a few days to a few weeks and causes very few side effects.

  3. Mayo Clinic Q&A: Seasonal affective disorder is more than feeling sad

    Oct 31, 2025 · ANSWER: Seasonal affective disorder, or SAD, is a type of depression that's related to the changes in seasons. Symptoms typically appear in the fall, worsen through the winter months …

  4. Seasonal affective disorder: More than feeling sad

    Nov 3, 2024 · How does SAD differ from other types of depression? SAD has a seasonal pattern, with recurring episodes happening more predictably during certain seasons — most commonly during the …

  5. Seasonal affective disorder treatment: Choosing a light box

    Mar 30, 2022 · Get tips for choosing a light box that's similar to outdoor light to help ease your mood and reduce symptoms of SAD.

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

    Oct 14, 2022 · If you feel depressed, make an appointment to see your doctor or mental health professional as soon as you can. If you're reluctant to seek treatment, talk to a friend or loved one, …

  7. What Is Seasonal Affective Disorder - Mayo Clinic Press

    Dec 12, 2023 · Seasonal affective disorder, or SAD, is a form of depression that primarily affects people during the fall and winter months when there is less daylight, particularly in locations farther from the …

  8. Persistent depressive disorder - Symptoms and causes

    Dec 2, 2022 · Persistent depressive disorder is not as severe as major depression, but your current depressed mood may be mild, moderate or severe. Because persistent depressive disorder is long …

  9. Clinical depression: What does that mean? - Mayo Clinic

    May 13, 2017 · Depression ranges in seriousness from mild, temporary episodes of sadness to severe, persistent depression. Clinical depression is the more-severe form of depression, also known as …

  10. Depression during pregnancy: You're not alone - Mayo Clinic

    Nov 21, 2024 · Sad mood most of the day, almost every day. Loss of interest in activities you used to enjoy or in work. Feelings of guilt, hopelessness or worthlessness. Trouble sleeping or sleeping more …