Changes

A '''heart rate''' is the rate at which a [[heart]] beats.  It is usually expressed in beats per minute (bpm).  

A '''heart rate''' is the rate at which a [[heart]] beats.  It is usually expressed in beats per minute (bpm).  In adult humans, the average heart rate while resting is 70 bpm (males) and 75 bpm (females).  The healthier a person's heart is, the lower his heart rate will be.

[[Category:Biology]]

[[Category:Biology]]