Who gets seasonal affective disorder (SAD)?

Jill A. Grimes, MD
Family Medicine
Seasonal affective disorder, or SAD, affects over half a million people each winter, including some symptoms in up to a third of patients seeing their primary care physicians during this season. It's most common in women (3:1 over men) and young adults 20-30 years old, but it is seen in across the board. January and February are the most common months that SAD is diagnosed.
Dr. Robin Miller, MD
Internal Medicine

Six in every 100 people have seasonal affective disorder or SAD. It is seen in children, teens and adults. Women are four times more likely than men to get SAD. It is seven times more likely to occur to a person living in New Hampshire than Florida. 

When people with SAD travel to warmer climates with longer daytime hours they do not get their symptoms. There are many of us who do not get SAD at all. Researchers are still trying to determine the cause of seasonal affective disorder.

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