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Define Heart Rate.
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Heart Rate is the speed of the heart.
User Siem Abera
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Heart rate is the speed of the heartbeat measured by the number of contractions (beats) of the heart per minute (bpm). The heart rate can vary according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide. ... Bradycardia is a slow heart rate, defined as below 60 bpm at rest.
User Giliev
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