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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.

By Healthwise Staff
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer Alfred Lewy, MD, PhD - Psychiatry
Last Revised March 14, 2013

WebMD Medical Reference from Healthwise

Last Updated: March 14, 2013
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