Seasonal affective disorder. A description of the syndrome and preliminary findings with light therapy.
Rosenthal NE, Sack DA, Gillin JC, Lewy AJ, Goodwin FK, Davenport Y, Mueller PS, Newsome DA, Wehr TA.Arch Gen Psychiatry. 1984 Jan;41(1):72-80. Seasonal affective disorder (SAD) is a syndrome characterized by recurrent depressions that occur annually at the same time each year. We describe 29 patients with SAD; most of them had a bipolar affective […]