Heart rate: Heart rate normally goes up and down depending on the stimuli and metabolic stresses. It is abnormal for the heart to slow down extremely, say below 40bpm. Some people with excellent conditioning have a low resting heart rate less than 60bpm.
Answered 3/14/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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