Explain the differences in heartbeat rates? Why do they exist?

Biology

2 answers:

Ilia_Sergeevich [38]3 years ago

7 0

Answer:

A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.

Explanation:

I HOPE IT HELPED

vekshin13 years ago

7 0

The heart rate is the number of times the heart beats in a minute. This is the number of times it pumps to push blood round the body. The heart rhythm is the pattern in which the heart beats.

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