do you experiance SAD?
What is seasonal affective disorder?
Seasonal affective disorder (also called SAD) is a type of depression that is triggered by the seasons of the year. The most common type of SAD is called winter-onset depression. Symptoms usually begin in late fall or early winter and go away by summer. A much less common type of SAD, known as summer-onset depression, usually begins in the late spring or early summer and goes away by winter. SAD may be related to changes in the amount of daylight during different times of the year.
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http://familydoctor.org/online/famdocen/home/common/mentalhealth/depression/267.html