Why does your heart never tire of constantly beating to pump blood throughout your body?

asked Nov 5, 2016 133k views

1 vote

by Jivy

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4 votes

Your heart gets oxygen. It actually does tire, once you die.

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2 votes

A heart doesn't 'tire' because it's doing what it's supposed to do which is pump blood. The oxygen we breath is what makes it pump

David Grant answered Nov 11, 2016

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