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Causes of SAD - Seasonal Affective Disorder







SAD also known as Seasonal affective disorder is a mood disorder linked to depression which is triggered by the seasons.  There are two seasonal types. One is called Winter-onset SAD or winter blues that starts in fall and continue to winter. The other type is a rare form of depression that occurs early summer or late spring it is Summer-onset.  A recent study says SAD is more common in Northern Part locations (countries) or lo ...

Seasonal Affective Disorder

Seasonal affective disorder or SAD is a type of clinical depression that occurs at a particular time of year and follows a seasonal pattern. It is estimated that 2- 4% of the population suffer from SAD. A recurrent pattern of winter depression occurring over a number of years, and during at least two consecutive years helps confirm a diagnosis of SAD.


It is important for your doctor to rule out a diagnosis of clinical depression or manic-depression, which can ...