Why does an elevated pulse from anger/anxiety contribute towards heart problems, but during exercise a fast pulse is healthy?

Question

I recently had a terrible disagreement with someone and everytime I think about it I start shaking and my heart starts pounding from adrenaline, which according to Google is unhealthy. But our hearts are accelerated when exercising, which is supposed to be a good thing – so what is the difference?

In: Biology

Answer 1

Stress and anxiety restricts your veins, making them smaller and harder to pump blood throughout the body. Exercise just increases blood flow that way the body has more access to oxygen