I know a lot of people who, when reaching some plateau, be it 40,50. 60. whatever, seem to come to some agreement with themself that this is the age that I have officially become old, and guess what, they do! I am 54, but have lots of friends that are my age or younger that have started acting old, gotten more sedentary whth their lifestyle, and in fact become old! I joined a gym a year ago, lost 30 lbs, I work out (previously that was a dirty word to me) I walk at least 2 miles a day, and I honestly feel better and am lots more active than I was 14 years ago when I turned 40! Do I have any aches and pains! Heck yes, when I get up in the morning sometimes I feel like an old man, but I just laugh it off, suck it up and go on! Life is what you make it! I think studies prove that inactivity is a killer, not getting old