Why does the breathing rate in human increases during vigorous exercises?
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the breathing rate in Human increases during vaguely vigorous exercise is due to evaporation
marionoffcourse:
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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