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Sunshine may 'reduce arthritis risk' [View all]
http://www.bbc.co.uk/news/health-21320858***SNIP
Sunny side
Researchers at Harvard Medical School followed two groups of more than 100,000 women. The first were monitored from 1976 onwards, the second from 1989.
Their health was then compared with estimates of the levels of UV-B radiation they were exposed to, based on where they lived.
In the 1976 group, those in the sunniest parts of the US getting the highest levels of sunshine were 21% less likely to develop rheumatoid arthritis than those getting the least UV radiation.
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