Exercise is supposed to be good for the heart – how does forcing a finite organ to work harder not just wear it out faster?
In: Biology
People have addressed the muscle part of it in other comments but there is also another reason. When you exercise, certain hormones are released that relax your blood vessels so that you can move blood more efficiently. Over time as you exercise more and more this makes your blood vessels more limber in general which causes you to have a healthy blood pressure in general. A normal blood pressure for longer periods of time puts less stress on the vessels which means you won’t pop an artery at 40.
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