AB ASKS previous question

[dot.hawkes]

http://www.newscientist.com/channel/health/can cer/mg19325894.700-sunseeking-immune-cells-ris e-up-to-fight-skin-cancer.html
This is an interesting addition to the debate. Isn't nature wonderful?

[drestie]

It is very true that production of vitamin D is a major benefit of sun exposure, but it is not a major benefit of tanning in a sunbed, because the composition of UVA and UVB rays is different. Tanning beds are approximately 95% UVA, and it is UVB that induces vitamin D production. Very interesting debate though.

[CT]

hmm indeed. I meant to post this in the thread, but can't locate it and can't be bothered to go searching for it.
http://www.newscientist.com/channel/opinion/mg 19325893.000-lighter-skin-makes-for-heavier-pa y-packets.html