The Exercise That Prolongs Life

mproves the muscles’ ability to pull oxygen out of the blood, reducing the need for the heart to pump more blood to the muscles
Reduces stress hormones that can put an extra burden on the heart
Works like a beta blocker to slow the heart rate and lower blood pressure
Increases high-density lipoprotein (HDL) or “good” cholesterol and helps control triglycerides
A number of studies have also shown that people who exercise regularly are less likely to suffer a sudden heart attack or other life-threatening cardiac event.
https://www.hopkinsmedicine.org/health/wellness-and-prevention/exercise-and-the-heart