Why is it healthy to strain your heart through exercise, but unhealthy to strain it through stress, caffeine, nicotine etc? What is the difference between these kinds of cardiac strain?
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Natural exertion is temporary and you usually get tired before heart stresses itself, your whole body works as it supposed to…
Stress and chemical induced heart rate is artificial and “not needed” your body is not behaving the same as if you do excercise.
Like fans or pumps, if they can operate normally moving the designed volume without any restrictions it is normal, but if a pump is forced to work with it able to push trough what it supposed, that puts stress on the pumps mechanics or vent bearings
When you are stressed, you are not running, your blood vessels are not dialated, your heart fights against the pressure… It is a good idea to do excercise when you are stressed, so you use the excess “energy”
It is a small difference but it is cummulative over a long time
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