Childhood sun exposure influences risk of multiple sclerosis in monozygotic twins.
Islam T, Gauderman WJ, Cozen W, Mack TM.
Neurology. 2007 Jul 24;69(4):381-8.
PMID: 17646631
Conclusion: Early sun avoidance seems to precede the diagnosis of multiple sclerosis (MS). This protective effect is independent of genetic susceptibility to MS.