Seasonal Affective Disorder and the difference from winter blues
It's 30 years since the term seasonal affective disorder (SAD) was first used to describe winter depression. Is it overused today?
In 1984 psychiatrist Norman Rosenthal first used a term that changed the way people thought about winter.
Seasonal affective disorder describes a type of depression with a seasonal pattern, usually occurring during winter. A lack of light is thought to affect the part of the brain that rules sleep, appetite, sex drive, mood and activity levels. Patients experience lethargy and a craving for sugary snacks
Seasonal Affective Disorder
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