Seasonal affective disorder (SAD) affects a significant number of individuals, with an even greater percentage of population suffering from a milder version of

SAD is depression caused by lack of natural light. People who have limited exposure to light, and people who live in northern climates are most likely to suffer

In 1984, Dr. Norman Rosenthal and his colleagues published a seminal research paper on seasonal affective disorder (SAD), unveiling what they were convinced was

Seasonal affective disorder (SAD), or winter depression, is a mood disorder related to the change in the seasons and lack of exposure to daylight. It affects 1