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Seasonal Affective Disorder (SAD)

Seasonal affective disorder (SAD) is a condition in which a person feels depressed at a certain time each year. It most often occurs during the fall and winter months when days are shorter and there is less light. Treatment includes light therapy, counseling, and antidepressant medicines.

Last Revised: March 14, 2013

Author: Healthwise Staff

Medical Review: Kathleen Romito, MD - Family Medicine & Alfred Lewy, MD, PhD - Psychiatry

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