Would you please identify the specific attitudes and (if not immediately apparent) why they would result in a limitation of perpetuity unless that would involve fifth-amendment immunity or whatever you call it? (Some of us need things spelled out.) Thanks!
What keeps us young, if anything, varies for each of us. If it were any one thing, that worked for everyone, we'd all know it already.
Eventually, we will discover several methods of either prolonging life or regaining youth. I have written of about a half-dozen methods myself. At the moment, they are all fictional or fanciful. But, as I said, eventually, we will find some ways. For me, the biggest disappointment regarding the so-called Affordable Care Act is that it emphasizes cost-saving rather than life-extension.
Now, when the "baby boomers" are interested and motivated, and have much of the wherewithal to proceed on the matter, geriatrics seems to be given very short shrift, if not a hasty boot out of the wagon. "You're on your own, Granny!"
But my perception is, that if we are to become truly human as a species, we'll need to gain some maturity. And if we are to travel eventually to the stars, we'll need to live longer just to be able to get there.
So longevity is in our future, just as soon as we clear away a few roadblocks and assorted blockheads.
But the specific formula? Sorry, I don't have it right now, other than to enjoy every moment and every joyous aspect of it.