A simulation reveals just what is making the satisfying ‘pop’ noise when you crack your knuckles. I mean, I have to say, the use of ‘satisfying’ here is certainly subjective, as for some of us, that ...

Cracking your knuckles may make a satisfying pop, but does it actually cause arthritis? Experts explain if the habit is ...

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 ...

Whether you love it or hate it, cracking knuckles is a common habit we've likely all done at some point. It's one of life's simple pleasures for some people, who crave the satisfying "pop" and ...

Good morning. I'm Noel King with the answer to a mystery that has puzzled scientists and kids for years. When we crack our knuckles, why do they make that popping sound? A grad student in France, ...