I’m 68 and not much has changed. Still working though I did try to retire last year. My team got so long faced I changed my mind and promised them one more year. Still run but much slower than I used to be. Took to lifting weights and it seems to help with arthritis some. Keep my hearing aids in so my wife doesn’t kill me for ignoring her. . My son still tries to jump on my back and the grandkids find me amusing. Over all it’s not to bad getting old.