Aerobic exercise makes your heart pump faster, but an overworking heart actually makes you die faster. So is aerobic exercise helpful or harmful to your body?
In: Biology
It doesn’t only make your heart beat faster, it also makes it beat better – fill better and pump larger amounts of blood in a single beat, the increased demand for oxygen from the heart muscle also creates more blood vessels to distribute this oxygen better which makes it more resistant to vessel occlusion i.e. heart attacks. This of course assuming physiological grade activity. At a certain point everything can snap, but I doubt you had excess is mind. If you straight up get off your couch for the first time in five years and decide to run a marathon you will likely die. As a fun side note humans have evolved to be endurance runners, we’re better at running very long distances at a steady pace (mostly for hunting reasons) so the heart was evolutionary made for such efforts.
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