I think exercise and general moderation have the most impact
My grandfather lived to 102 (or 104 - he lied about his age to get into WWI, then could never remember if he stopped lying - also was italian imigrant arriving her in his early teens).
The man was the very picture of moderation. He had coffee every morning with a spoonful of honey, one glass of wine with dinner, a piece of fruit for dessert and a cigar in the evening. He often went for a stroll after dinner. He favored easy mello activities like shuffleboard, bowling, bicycling, swimming. I don't think I ever saw him exert himself or rush.
Something to be said for that.
