Survival instinct is deeply hard wired into all animals, including humans. It's natural to want to continue living.
Anti-aging is picking up now because there's a growing belief that significantly extending the healthy human lifespan is within scientific/technological reach.
> I personally would prefer to survive longer. If you don't, that's your business.
Ideally I'd die in my sleep 75-80 +/- a few years having seen some grandkids. Doing daft stuff now to push that number further out just seems pointless.
The next generations will have enough problems to deal with without having one more cranky 90+ year-old constantly popping pills claiming he can live forever.
I don't know that we have evidence that survival instinct goes away after reproduction. It's still valuable to our species to survive after reproduction in order to protect and nurture offspring, for example.
There's no evolutionary reason that survival instinct would turn off after a certain age.
> There's no evolutionary reason that survival instinct would turn off after a certain age
Umm, without wishing to get too clinical or morbid, it's clear that once your offspring have reached adulthood there will always come a point beyond which you rely on them more than they rely on you, right?
Anti-aging is picking up now because there's a growing belief that significantly extending the healthy human lifespan is within scientific/technological reach.