We have a world with healthcare options never available before. And medicines that can expand life and longevity. Vitamin pills and other enhancement stuff. He is the only driver scince Jackie Stewart who claims not to drink alcohol. He is also a vegeterinarian. These choices may enhance his health and limit deterioration of physical functions.
There are NO drugs that stop the aging process, end of story. It doesn't matter how good you are or how dominant you were.....Like I say look at Rossi (or look him up, regarded as the GOAT of 2 wheels, now he can't win and I'm a massive Rossi fan). Age catches up with everyone.