Seasonal Affective Disorder

SAD (Seasonal Affective Disorder) was first described more than ten years ago by Dr Norman E. Rosenthal, himself a sufferer. He recommended long hours in front of a light box as a cure. (A light box is a portable box fitted with powerful electric lights.) However, this was often difficult for sufferers to fit into their busy lives. Moreover, there was a risk of overexposure to harmful ultra...