Winter solstice: the importance of daylight | Dean Burnett | Science | The Guardian

http://www.theguardian.com/science/brain-flapping/2015/dec/22/winter-solstice-google-doodle-daylight-health-psychology-sad

This URL is bookmarked by 1 user.

First saved: 2015-Dec-25 (Fri)
Last checked: 2015-Dec-25 (Fri), response 200