Question

why does our heartbeat increases aftet running

Answer 1

Why heartbeat increases after running?

Muscles need more oxygen and energy during exercise. The blood vessels of the active muscles dilate to increase the blood flow and the amount of nutrients delivered to them. ... However, more vessels dilate than constrict, requiring the heart to pump faster to maintain a normal blood pressure.

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Answer 2

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