Question

Explain why the heart beats faster and after a physical exercise




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Answer 1

Answer:

During exercise, your body may need three or four times your normal cardiac output, because your muscles need more oxygen when you exert yourself. During exercise, your heart typically beats faster so that more blood gets out to your body.

Explanation:

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Answer 2

Answer:

Lack of oxygen. when we are doing exercises our muscles don't have oxygen.Lack of oxygen the heart beats faster and after a physical exercise.

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