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SAD (Seasonal Affective Disorder)


sunny morning environmental therapeutics

How does light work?

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

The Timing of Sunrise Within U.S. Time Zones . . . and SAD

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

Variations on the SAD Experience

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

Andrea’s Story: Up Close and Personal with an Ionizer

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