why is increased heart rate considered dangerous when it comes as a side effect of drugs (ie cocaine, marijuana) but considered beneficial and necessary when caused by aerobic exercise?

Question

I’ve even seen “increased risk of stroke” caused by this increase in heart rate. Something is not adding up here, why such a big difference?

In: 20

Answer 1

From my understanding, a sustained high heart rate is worrisome, but a brief burst of activity is not. Think of how doing push-ups can be easy but holding a plank position isn’t.