Health
Health, 18.10.2019 05:30, skdkdksks

As does the same exercises on a regular basis, they may find that their heart rate decreases with the same amount of activity, this is because

the muscles have acclimated to the work so now it's not as much work

the heart muscle has become stronger and can pump more blood and oxygen per beat

both a & b

none of the above

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