Seasonal Affective Disorder

This is a form of depression also known as SAD, seasonal depression, or winter depression. The symptoms usually occur during the fall and winter months when there is less sunlight and improve with the arrival of spring. January and February are the most difficult months for people with SAD in the United States. SAD is more than just "winter blues." The symptoms can be distressing and overwhelming and can interfere with daily functioning. However, it can be treated. About 5 percent of adults in the U.S. experience SAD, which typically lasts about 40 percent of the year. It is more common among women than men.