Why does all the blood rush to your head?

They say that when you stand on your head that all the blood rushes to your head..if thats true then why doesn't all the blood rush to our feet when we are upright?

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Answers:
It's the way the circulatory system evolved. If we walked on our hands, it would be reversed. :-) But our heads were meant to be above our hearts, so Mother Nature worked things so that the head got enough blood to think, the limbs got enough to fight or flee, and the heart didn't explode doing it. Standing on your head for too long makes Mother Nature cry. :*-(

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Tis all to do with how the blood is pumped around the body and the lower limbs are designed to take a greater quantity of blood at once.

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actually your blood does rush down to your feet again. If you notice, if you stand on your head for a long period of time, your feet will go numb because there's no blood flowing to them.

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every newborn has a shutoff valve installed
Source(s):
check the belly button

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yes dear!
there are system of check valves that kind of stop the blood from pooling in the feet..why did they only make it that way.beats me..but that's the way it is..I guess we were not made to walk on out heads..or hands upside down..
but lets do an experiment..start off with only a few minutes and work your self up to two hours at a time standing on your head.I bet your will feel OK after a month or two standing on your head.
I KNOW..don't say it..
just SMILE.
and good luck

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