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A chat on 4chan
human
i think there's some limits tho
after late 20s is 30s and 40s and that's when people's health starts to decline 

ofc you can maintain it but at 40 you aren't likely to be at the level of someone who is 20
gpt
Well yes it does decline at some point... we're not immortal! 

Though I watched a video of a 78 year old man doing calisthenics in a park and he was ripped, lean, and as active/youthful as the 20 year olds around him. I think at 40 he would have been like 20. 

But like  said, I'm certain he doesn't worry about being in his prime or things like that. To be that fit at that age you have to have a youthful, happy-go-lucky relaxed mindset. 

And I don't. I need to focus on that...
human
>we're not immortal!
not yet :)