Have you ever wondered just how important your heart is? Do you ever think about it to keep it beating? Well, the answer is probably no. Your heart is an amazing organ. It has the ability to function on its own. The heart is about the size of you fist lying in the middle of you chest. It is composed of numerous fibers and tissues, which allows it to operate and pump blood though out …
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showed last 75 words of 614 total
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