Seasonal Affective Disorder (SAD) is a form of major depression that recurs at the same time every year, in the late autumn-winter months. The causes of SAD are not entirely known, though it is... (more)
Seasonal Affective Disorder (SAD) is a form of major depression that recurs at the same time every year, in the late autumn-winter months. The causes of SAD are not entirely known, though it is... (more)