27-09-2017
Biology

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Why does the human heart rate increase when exercising?

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27-09-2017

Cause you get more exercise and you get the blood all flowing

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mdbar321 mdbar321

27-09-2017

Your heart speeds up to pump extra food and oxygen to the muscles. Breathing speeds up to get more oxygen and to get rid of more carbon dioxide. When a fit person, such as an athlete, exercises the pulse rate, breathing rate and lactic acid levels rise much less than they do in an unfit person.

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