liarslynn liarslynn

21-10-2015
Health

contestada

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

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BUBBLYBOB1 BUBBLYBOB1

21-10-2015

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

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Аноним Аноним

22-10-2015

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

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