Alfred J. Lewy, MD, PhD

Circadian components are profound in depressive disorders, such seasonal affective disorder. This article introduces a course to be given at this year’s APA Meeting in Toronto, on melatonin and light treatment.

What do we know about circadian rhythms and melatonin? And what further lessons do we need about circadian rhythms, light exposure, and melatonin to help our patients with disturbed sleep/wake cycles?