In the United States, the percentage of the population affected by SAD ranges from 1.4% of the population in Florida to 9.9% in Alaska. SAD was formally described and named in 1984 by Norman E. Rosenthal and colleagues at the National Institute of Mental Health.Marshall, Fiona. Cheevers, Peter (2003). "Positive options for Seasonal Affective Disorder", p. 77. Hunter House, Alameda, Calif. .
In the United States, the percentage of the population affected by SAD ranges from 1.4% of the population in Florida to 9.9% in Alaska. SAD was formally described and named in 1984 by Norman E. Rosenthal and colleagues at the National Institute of Mental HealthMarshall, Fiona. Cheevers, Peter (2003). "Positive options for Seasonal Affective Disorder", p. 77. Hunter House, Alameda, Calif .