samedi 10 août 2013

Why do people get crooked teeth?

I never really thought about this, but you never see an animal that needs braces and I don't think our ancestors would have fared too well if they all had messed up teeth. Nowadays almost everyone gets braces.



This article posits that it's diet (mainly nutrients), but I find it hard to believe that we're eating that much worse than ancient hunter gatherers.



http://www.thehealthyhomeeconomist.c...crooked-teeth/





via JREF Forum http://forums.randi.org/showthread.php?t=263597&goto=newpost

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