Teri Wilson
April 30, 2016 9:47 pm
NBC

Guess what, ladies? Science has been keeping the scoop on our skeletons a bit of a secret. You probably knew that as you age, your pelvis grows (because that makes perfect sense), but SPOILER ALERT after you hit 40, it begins to narrow again. Our minds are officially blown.

NBC

Scientists have actually known about this for a while, but new animation just published by the Proceedings of the National Academy of Sciences (PNAC) shows us exactly what’s going on down there as we age. And it’s pretty amazing.

While men’s pelvises just grow larger as their bodies develop, women’s pelvises expand as they approach childbearing age and then shrink again as fertility begins to decline. It makes perfect sense for the pelvis to widen to accommodate childbirth, but why the narrowing as menopause sets in? According to researchers at the PNAC, it’s to help balance and stability. Impressive, right?

All these changes are driven by hormone levels. Dr. Marcia Ponce de León, senior researcher at the University of Zurich in Switzerland and a co-author of the study, told The Huffington Post that women’s bones are “sensitive to hormonal change, and probably to environmental change — because hormones are influenced by the environment…Pubertal rise in estrogen concentrations mediates the widening of the pelvis and the high estrogen levels during the time of highest fertility maintain the width of the pelvis. The postmenopausal fall of estrogen concentration results in narrowing of the pelvis.”

This pretty much sounds like women’s skeletons are super smart. Our pelvises are adapting to all the things our bodies need to do, like giving birth, standing, walking and busting out sweet dance moves.

Giphy

Thanks to the PNAC’s new super cool computer animation, we can actually see how this happens. Take a look at how a man’s pelvis (left) develops compared to a woman’s pelvis (right), from the ages 15 to 25 (and back again)…

Top view:

Frontal view:

Now see what happens between the ages of 40 to 80 (and back again)…

Top view:

Frontal view:

Like we said, AMAZING.

Props to the PNAC for showing us what’s happening in our twerking region. And props to our bodies for being fabulous. #girlpower

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