SAD rate 10X higher in cloudy Seattle than sunny Florida - April 2011

from
http://www.king5.com/news/local/Winter-blues-are-the-real-deal-say-Seattle-doctors-119639824.html

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See also VitaminDWiki

• All items in category Depression and Vitamin D 268 items
• Depression in UAE peaks in the summer – probably due to sun avoidance – Feb 2011
• Concealing clothing resulted in only 8 ng vitamin D – Feb 2011
• Even in Sunny Areas, Vitamin D Intake Often Too Low - May 2010
• Less than 4 ng is more common in Saudis than diabetic Saudis – July 2010
• Teens increasingly indoors - especially if dark skin - July 2010
• Several abstracts on vitamin D and depression – Y or N July 2010
• Less than 20 ng vitamin D increases depression by 80 percent – Dec 2010
• US Cities with least amount of sunshine - top 15 all in Washington
• Teens no longer depressed after vitamin D raised to 36 ng – Feb 2012

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See also web

• Sunbeds and UV exposure: Can they elevate mood? Vitamin D Council Oct 2013