Seasonal Affective Disorder Sorry no news is found ... Your
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top of this page. Seasonal affective disorder (SAD), also known
as winter depression, winter blues, summer depression, summer
blues, or seasonal depression, is a mood disorder in which
people who have normal mental health throughout most of the year
experience depressive symptoms in the winter or summer, spring
or autumn year after year. In the Diagnostic and Statistical
Manual of Mental Disorders (DSM-IV), SAD is not a unique mood
disorder, but is "a specifier of major depression". Although
experts were initially skeptical, this condition is now
recognized as a common disorder, with its prevalence in the U.S.
ranging from 1.4 percent in Florida to 9.7 percent in New
Hampshire. The U.S. National Library of Medicine notes that
"some people experience a serious mood change when the seasons
change. They may sleep too much, have lit