<P> Many texts cite the normal resting adult human heart rate as ranging from 60 -- 100 bpm . Tachycardia is a fast heart rate , defined as above 100 bpm at rest . Bradycardia is a slow heart rate , defined as below 60 bpm at rest . Several studies , as well as expert consensus indicates that the normal resting adult heart rate is probably closer to a range between 50 and 90 bpm . During sleep a slow heartbeat with rates around 40 -- 50 bpm is common and is considered normal . When the heart is not beating in a regular pattern , this is referred to as an arrhythmia . Abnormalities of heart rate sometimes indicate disease . </P>
<P> Many texts cite the normal resting adult human heart rate as ranging from 60 -- 100 bpm . Tachycardia is a fast heart rate , defined as above 100 bpm at rest . Bradycardia is a slow heart rate , defined as below 60 bpm at rest . Several studies , as well as expert consensus indicates that the normal resting adult heart rate is probably closer to a range between 50 and 90 bpm . During sleep a slow heartbeat with rates around 40 -- 50 bpm is common and is considered normal . When the heart is not beating in a regular pattern , this is referred to as an arrhythmia . Abnormalities of heart rate sometimes indicate disease . </P>
what is the average heart rate of a healthy person
what is the average heart rate of a healthy person
50 and 90 bpm
50 and 90 bpm