He’s doing a lot better and his exercise for the time being is limited to walking. Bob — a fitness nut — says the heart attack is all genetics.
...
It usually is genetics. But his a survival is a testament to his fitness. The odds aren’t good for people who are revived by CPR.
Reminds me of Jim Fixx, the running guru who died in 1984 while jogging:
https://en.wikipedia.org/wiki/Jim_Fixx
Sometimes genetics, sometimes supplements or drugs....