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OpenStudy (anonymous):
how many beats does a human heart have a minute?
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OpenStudy (anonymous):
72
OpenStudy (blues):
Varies. Different people at different exertion levels have different heart rates. Average resting heart rate is probably between 60 - 80 bpm. In athletes, resting heart rates as low as 20 bpm have been recorded; in states of exertion or high oxygen demand, heart rates upward of 200 bpm have been recorded.
OpenStudy (blues):
Adeshshendge, why do you randomly say 72?
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