I'm two years younger than you.  Haven't gone grey, still have a full head of hair.  When I go out and look around I can't even tell what other people's ages are by looking at them anymore. About three years ago I was out at a shooting range and got into a conversation with a group of guys in their mid 20's.  Didn't hit me at the time but I didn't look out of place with them. When I'm out and see guys who I'm guessing are my own age, they look more like they could be my father than my contemporary.  The fast aging brought on by the fat epidemic is really starting to screw with my head.