Well.. I'm only 20 and I've got really bad shoulder geometry (result of breaking both collar bones at the same time when I was 2), a severely mashed right knee (my fault, though... stupid gravel and posts..), a terribly bad/sore back, and chronic wrist problems.
I'm still pretty healthy, though, I think. I'm active, I'm not over-weight so I suppose I've got something going for me. I think I'd better go to the doctor soon to have my knee looked at, though. I never did do that, and I injured it nearly a year and a half ago.
I grew up in a coal-mining town, it's kind of our only tourist attraction- going down the mine and coming back up in a skip. Yaaaay! If you wanted, I could probably get you guys some discount "Where the hell is Wonthaggi" t-shirts. They only come in elephant size though.
If you've ever seen the Aussie movie 'Strikebound', it was mostly filmed at/down the Wonthaggi mine, a paddock away from where I grew up.
FYI DMT is actually a member of the tryptamine family. The difference to lsd,psycobilin and meskalin or Bufotenin is the full stimulation of the 5-HT2A (5-Hydroxytryptamine) receptor, whereas the last ones just act as partiel agonists.