I strongly suspect that health is largely genetic. I drink a quart of whole milk every day, eat meat, cheese, and butter in large quantities, drink wine, beer, and spirits in moderate amounts, and avoid strenuous outdoor exercise (it gets hot here in Texas), yet my cholesterol, blood pressure, and other health measurements are perfectly fine and I'm pushing forty. Other people with different genetics might not do so well living the way I do, but it works for me.
And who wants to live forever if the price is giving up those things that make life enjoyable? Frankly, I'd rather drop dead than have to eat compressed sawdust bars.
Anyway, what a sad story. May God bless this poor man's soul and ease his family's grief.
Healthy people dying of a heart attack is the exception. For every person that exercises regularly and dies of a heart attack, there are thousands who exercise and prolong their lives.
Of course fat, lazy people will find some excuse not to get off their butts no matter what the facts are.