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From: edelson@mhuxi.UUCP (edelson)
Newsgroups: net.cooks,net.flame
Subject: Re: Re: Truth in Advertising?
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Date: Mon, 3-Dec-84 13:45:11 EST
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Posted: Mon Dec  3 13:45:11 1984
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The other side of the question is why peoples in northern climes should
tend to fair skin and light hair.  If the radiation argument were true,
one would expect that a dark skin would help one to keep warm in cold climate.
The reason for the fair skin is to allow the maximum production of vitamin D
with tha available sunlight.
Vitamin D insufficiency leads to ricketts, a bone disorder which affects,
among other things, the ability of a woman to bear children.
So evolution triumphs again.