Why does the rate of heartbeat change?
The nervous system controls the rate of the heartbeat and respiration.
A newborn. As you get older, your heartbeat rate slows.
Yes, music does affect the rate of a heartbeat. Music can often be used to lower the heart rate and tension level in a human.
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Mouse doesnt have a pulse rate, but it has a faster heartbeat rate coz its smaller in size,the smaller the animal is,the higher the heartbeat rate it has!!!!
the SA node
carseat
60 - 100 beats per minute is the normal rate
It depends on the heart rate. For example: The normal resting heart rate for a person is 70 beats per minute. (60 seconds per minute) / (70 beats per minute) = 0.857 seconds
It's almost entirely dependent on the intensity and duration of the work, and also of your health status. Other factors may also interfere on the frequency of your heartbeat.
People who are fit typically have a slower heartbeat because the heart does not have to work as hard to pump blood, and un-fit people have a faster heartbeat because their heart has to work harder to support them since they don't exercise enough.