I'm forty. I have little aches and pains and sometimes have to take a deep breath before standing up from a chair or getting out of the car because I get stiff if I sit for too long. I need new glasses (possibly bifocals OMG!). I have relatively frequent bouts of CRS (Can't Remember Shit).
But you know what else? I can walk and talk. I can read, type and diddle around on the Internet. I can write in this blog, write stories and write notes for myself so I can remember things. I can get up to go to the bathroom whenever I need to go and wipe my own behind when I'm done.