Winter blues

SAD is not a myth. It is a mental disorder that is incompletely understood and also something that is complicated by questions about the role of evolutionary biology.


In order to meet the qualifications for a SAD diagnosis, according to the Mayo Clinic, an individual must be show the following:

• depression and other symptoms for a minimum of two consecutive years during the same season.
• depression-free periods following episodes of depression
• unexplained behavior and mood changes.

Read more: Seasonal affective disorder: who suffers what's the best treatment | TIME.com http://healthland.time.com/2014/01/10/can-winter-really-make-you-sick-the-truth-about-seasonal-affective-disorder/#ixzz2q1IXd3yu