While you have a point it does not explain it all.
My family is very athletic, marathoners and all that.
Pop died young from a heart attack.
His Identical twin, also a marathoner lived 15 years longer and died of respiratory problems.
They had virtually identical genes and lead the same lifestyle.
I smoke and drink, I might drop tomorrow or at 90.
Who knows?
Well yes. There is also stress response that certainly ages. It is just that I have had massive stress in my life more so than many of my siblings and I sought out support and assistance. I think this may have an impact on why I am so healthy too. I gather around me—God, emotional support, take care of myself, stay engaged in life learning new things, taking risks, challenging myself. But this too goes back to how healthy and energetic I feel as a result of self care. So who knows. It is interesting area to explore. Sorry about your Father. I also lost mine to a heart attack Great you come from an athletic family. :)