The most important factor is good genes, with respect to coronary heart disease. It’s more important than smoking, diet, or exercise. It’s really unfortunate that everybody wants to upend society completely because of a certain percentage of folks we can’t do anything about. They ruined commercial french fries for example. In the 70s we were all hectored about eating eggs, and “experts” suggested substituting oleo margarine for dairy butter.
Good genes are tough to beat.
My grandma lived to be 106 and ate an “average” diet, smoked an average numbers of cigarettes, drank an average amount of liquor.
Her exercise in her last thirty years was primarily turning over cards in canasta games.
The only distinctive thing about her life—she never worked a day in her life—very low stress.
So I say stop worrying about food, stop worrying about exercise, and get the stress out of your life!