Exposing your skin to dawn/dusk sunlight (UV index near zero) for 30 minutes provides at least 24 hours of protection against sunburn.
Philip Brewer
Writer: science fiction and fantasy, personal finance, and Esperanto
Exposing your skin to dawn/dusk sunlight (UV index near zero) for 30 minutes provides at least 24 hours of protection against sunburn.
@philipbrewer Interesting, was surprised when is saw the date on that one. How’d you dig that up?
@scientifics Yes, I was surprised too, and am doing some further reading the same researchers’ more recent work.
I found the link in this article by Mark Sisson: http://www.marksdailyapple.com/sun/ (lots of other good stuff about sun exposure there).
@philipbrewer Thanks! I’ll have to give that a read and I’m interested to hear what else you find.