Why pregnant women never reach tipping point
Females' spine evolved to become more flexible, researchers explain
Dec 13, 2007 04:30 AM Sheryl Ubelacker THE CANADIAN PRESS
It's one of the great mysteries of nature: What stops big-bellied pregnant women from tipping over when they're on their feet?
Well, U.S. researchers think they have the answer after studying modern-day women and fossilized bones from early humans – and it's all about the spine.
they never tipped back then either that i can recall ; you really need to find some thing to do with all this spare time ;
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