Peter Attia's father, nearly 87, continues to work daily at a quarry, which Peter Attia believes is important for his father's cognitive health despite the physical risks.

“My Hope on a personal level is that driving is one of those things it involves so many senses so your eyes your ears and your proprioceptive vestibular system and your what we call I call my butt dyo right so the ability of your butt to sense changes in movement and gravitation to sense yaw in the car all of those things have to be working on a hyper overdrive and again my my hope is that that's the kind of thing that keeps your brain sharp as you age um you know when people ask me uh you know what do what do you think about retiring at such and such an age you know I think we should think about retiring as a time when we don't work for money anymore but I really think it's probably important that people are working throughout their entire lives meaning they're working on something that is keeping their brain challenged um you know as of this recording my dad is almost 87 years old and he still works every day at a quarry now I have no re idea why um he doesn't need to be doing that and it poses such an enormous risk to him you know he's not stable when he walks around he's walking on these rocks I'm I'm worried every single day he's going to fall and smash his head open but I've stopped telling him to stay home because I realize that he has to be doing that and doing deals selling stone is so important to him that I fortunately for all of my father's health problems his brain is by far the best part of his body so um I I I think there is something to that”