Feb 5, 2013 1:48 PM by NBC News

Lower rheumatoid arthrities risk linked to sunlight

Exposure to sunlight may reduce the risk of rheumatoid arthritis in women.

Researchers tracked the health and lifetime UV exposure of middle aged women over a 30-year period.

Those with the highest exposure to UVB rays were 21% less likely to be diagnosed with rheumatoid arthritis than women with the least.

There was no such association when researchers analyzed a younger, more sun-savvy generation of women, suggesting sunscreen may block the positive effects of ultraviolet rays on rheumatoid arthritis.



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