TANNING CAN CAUSE CANCER, but not tanning could cause a lot worse: a very clear explanation of the importance of vitamin D -which is produced when skin is exposer to sunlight- for our health, and the damage cause by anti-UV hysterics. Don't missing.
My English is not perfect? Well, it's not my mother tongue, so sue me!
See also Barcepundit (the original, in Spanish)