There is a simple NO COST method to prevent coronary occlusion which brings on heart attacks. It is daily brisk walk for 30 minutes. I am 85 y.o. and EKG just 2 weeks indicated normal heart function, never had a heart attack. During my late 50’s I had bad a missing heart beat after every 10 beats or so. Also had chest pain after eating a meal with meat. And blood pressure was on high side with border line diabetic condition. I quit my job and took up golf to kill time. Gradually increased my play to 5 rounds of 18 holes every week. That adds up to 30 miles of walking every week. To my surprise all my health issues disappeared after a year. No doctor ever told me walking 30 miles/week cures heart issues.
Exercise in moderation is good for you.
It does not guarantee no heart problems. Many people who consistently exercise have had hear problems and hear attacks.
My brother is one such.