I started cracking around the age of six, my brothers taught me how. I'm 42 now so I've been at it for over 35 years, longer then a most of you have been alive it seems. I've never had any problems related to cracking, although I do know a number of people my age who don't crack but do have joint problems.

Well, I started cracking before I started school at age 7. I'm 42 now and the only joint problems I have are the result of a broken ankle.

Have you tried just squatting? When I squat down low both my knees give out multiple cracks.

I've been cracking as long as I can remember. My older brothers taught me. In second grade me and several other boys would crack just to annoy the teacher. She hated the sound of knuckles cracking. LOL

@verlaine:

I have to confess that I have bizarre fantasies about devices and situations that will crack my back, and sometimes I obsess about them. I dream of being in a medieval torture rack or being chained between two cars and pulled apart until my back totally cracks.

Also, I have also thought about havingt a giant King Kong-sized being grab me with one hand around my shoulders and one hand around my waist and wring me out like a dishtowel.

Anybody else?

Yes, I know exactly what you mean. As a kid when I watched Addams Family re-runs my favorite part was when Gomez was on the rack. When Lurch would turn the wheel & there would be a loud crack & Gomez would get this relieved look on his face. I once had my older brothers tie my hands to a fence post and tie a rope around my ankles & start pulling to try to get my back to crack like that. Unfortunately our mom saw us & kinda freaked out, so I never did get that satisfying crack.

I can easily crack my smaller joints (fingers, toes even knees) The big ones give me problems. I can occasionally crack my neck & back. I love the feeling when my jaw cracks but that only ever happens by accident.

Never used to feel pain, but I broke my right ankle last year & now I feel pain when I crack the toes on that foot. The ankle itself no longer cracks because of the steel implants.

For me the best crack is my jaw, just because it's so rare. It only cracks by accident & is always very loud. For some reason when my jaw cracks I feel soooooo realaxed!

I don't think he's medical student either. As far as joint cracking goes I've talked about it with my own M.D. He would prefer I not do it as the jury is still out on whether it causes harm, but admits he'd prefer I crack my joints rather then take up some other stress-relieving vice such as smoking or drinking.