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masha68 [24]
2 years ago
7

Explain why vigorous exercise causes the heart rate to increase and you to also breathe faster.

Chemistry
1 answer:
patriot [66]2 years ago
3 0

Answer:

When you are exercising, your muscles need extra oxygen—some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing.

Explanation:

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