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What factors can trigger seasonal affective disorder?

The main trigger for winter-onset seasonal affective disorder is thought to be a lack of exposure to sunlight.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 25 Nov 2014
Last reviewed: 18 May 2018
Rating: 5.0 out of 5
Votes: 256 (Click smiley face below to rate)
Category: Depression


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