His problem? A newly diagnosed condition called seasonal affective disorder. Seasonal affective disorder, or SAD, was first described in 1984 by Norman Rosenthal, MD, medical director of Capital ...

The miserable weather we’ve been having recently has made the darkness feel even more oppressive, especially for those of us who struggle with seasonal affective disorder, or SAD. Also known as ...

Seasonal affective disorder (SAD) is a form of depression that usually occurs around wintertime. Symptoms of seasonal depression include sleeping more than usual, feeling sad, and fatigue.