>>76417208
>physical labour will help too

I had piano player sticks for hands even when going to the gym 3 times a week in my 20s, my father had big shovel hands as a metal worker.
Im my 30s I moved to glass industry and my fingers have noticeably thickened, the skin also got into a much worse condition as to the back of my hand looks like a 50y+ dude.
I take extensive care for my face and feet (the literal backbone of your everyday), but I somehow neglected the hands, now the skin is all wrinkly and busted.

tl;dr manual labour job for years