Three reasons why the time required for the pulse rate to return to normal varied from individual to individual are:
- Physical condition (individual having a good physique has a lower resting heart rate e.g., athletes).
- The heart of healthy individual will return quickly to its normal beat rate after exercising rather than that of an unhealthy person.
- Age of the individual also matters (children have 70 to 120 beat per minute of resting time while adults have 60 to 100 beat per minute of resting time.)
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