SAD (Seasonal Affective Disorder)

Light is a powerful antidepressant and is also the most powerful known zeitgeber (time-setter) for the internal biological clocks of the body. Surprisingly, we still...

Shortly before the winter solstice near Basel, Switzerland. Photo courtesy of Dominik Wunderlin, Basel December 2020. With the winter solstice upon us, the season for...

Seasonal affective disorder (SAD) is operationalized in the Diagnostic and Statistical Manual of Mental Disorders, 5th ed., as a subtype of recurrent major depressive...

Andrea M, 23, was a graduate student at Hollins University in Roanoke, Virginia. A couple of years earlier, while she was still an undergraduate...