When someone stretches or bends their knuckle to crack it, they increase the space between the bones, which creates a drop in ...

Cracking your back can feel satisfying and relieve stiffness, but is it actually safe? Science shows that occasional back cracking is generally harmless, but frequent or forceful cracking may carry ...

A bit of relief, or maybe just a force of habit: We’re separating fact from fiction about what happens when you crack your knuckles and other joints. * It all has to do with the “synovial fluid” in ...