Canadian researchers found that women who lived in areas of the US with the highest levels of exposure to the sun's ultraviolet B rays from ages 5 to 15 had a 51% reduced likelihood of developing multiple sclerosis, compared with those who lived in areas with the lowest UV-B exposure during the same age range. The findings in Neurology also showed a lower MS risk among those who spent more time outdoors during the summer growing up.
Increased sun exposure in childhood may reduce risk of MS as adult
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