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.
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Specialist Medical ReviewerAlfred Lewy, MD, PhD - Psychiatry
Current as ofNovember 20, 2015
WebMD Medical Reference from Healthwise