Explain the changes in arterial pulse depending on the state of the human body.

The normal human heart rate is about 70 beats per minute. It is in a calm state of the body. Depending on what the person is doing, the heart rate may increase or decrease. When a person works, plays sports or is nervous, the pulse rate increases, since the cells need more oxygen, and accordingly, the blood needs to be pumped faster. Also, the heart rate depends on the ambient temperature. When a person gets into frost or cold water, the pulse quickens and then slows down.



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