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Why do you breathe faster during increased activity?

User Hirolau
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2 Answers

4 votes
You’re putting your body to work which increases the heart rate causing you to breathe more.
User Nemanja
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1 vote
Because to move faster or longer, your muscles and heart need to work harder. And because they are working harder, they need more oxygen. Therefore, we breathe harder.
User Bsnyder
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