You are right. There will be that demographic who will start with the lifestyle nonsense but that’s all it is. Old age is old age. Death comes in stages. People age differently and at different rates. I have analyzed the historical record. Since civilization the ceiling for human life spans starts to set in around age 60. Yes. for every Michaelangelo there are 1000 Da Vinci’s. The Venerable Bede died somewhere between 58 and 63. Lots of exercise. In the case of my examples no heavy lifting or deleterious back breaking peasant work. No tobacco. Modest alcohol (booze in those days had less alcohol that today’s) Less meat and non-fatted-up meat at that… IOW all the good stuff. None of the bad stuff. Short leash.
I remember a story G Gordon Liddy (yes him) told on the radio. He had just turned 60. He got a nice birthday card from State Farm thanking him for being a great customer. Then dropped his medical insurance because we don’t insure people over 60. He then found out nobody else did either. They know the numbers.
Sure there are more Michaelangelos today than there used to be but almost all are on drugs, have had surgery to remove some “naughty bits”, or like me, they have 3 stents and a shocker machine wired into their heart. I am 67 (DaVinci’s age at death) I could still live to be Michaelangelo’s 88. That’s what my mother did and she was diabetic and didn’t have the shocker machine, so I might still be good for 100…?