I'm not sure how old I "feel". I'm 46. I am 6' 4" and weigh 270#. In the past five years i've noticed my metabolism has slowed way down. Used to be able to really put the food away and not gain a pound. Five years ago I was 255#, now fluctuate between 270-275# I do know that in the last 3ish years I've noticed more aches and pains and healing takes longer. I've had both knees scoped, L4-L5 discectomy in the last 10 years and here a couple weeks ago had my right shoulder scoped (instead of a replacement like the doc wanted to do). They removed a bone spur, removed the bursa sac, cleaned up a labral tear and released the long head of the bicep tendon (tenotomy). Zero cartilage in my shoulder. Don't get me wrong with this post, I still get out and hammer. It's just not like it used to be. I guess the term "getting old sucks" applies here LOL