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/
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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