Quote:
Originally Posted by blankall
I'd agree. I only wear sunscreen when I'm in a situation where I might burn.
That being said I was blessed with olive skin and by day 4 of a Mexican vacation I typically have enough of a tan that I won't burn.
White people are way more likely to get skin cancer, which suggests to me the main factor is burning and not exposure.
These Neolithic arguments do have some truth to them, but can't be taken to extremes in modern life. As for the live to 40 thing, that was life expectancy, which includes huge rates of infant mortality. In most, even ancient, human societies if you make it to adulthood, you have a good chance of making it to 60+.
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The key though is Neolithic arguments are only valid if what you are evaluating affects your ability to pass on DNA. So skin cancer would have almost zero affect on ones ability to pass on DNA