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- Dictionaryheart rate
noun
- 1. the speed at which the heart beats: "the average heart rate is 72 beats a minute"
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noun
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Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute. The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide. It is also modulated by numerous factors, including (but not limited to) genetics, physical fitness, stress or psychological status, diet, drugs, hormonal status, en... Wikipedia