Whether it’s one or all of your knuckles, you may wonder what causes the cracking sound. Although interesting, “cracking joints” and “popping knuckles” are not fully understood.

There were only two responses to the cracking of knuckles, which oscillated between getting shrugged off and complete ...

Previous research had suggested that the collapse of the bubbles can generate the cracking noise, but others argued that pressure changes produce the sound, Barakat tells The Guardian. Images of ...

Dr Chris van Tullekan questions that piece of perennial parental advice: don’t crack your knuckles or you’ll get arthritis! One researcher, Dr Donald Unger, actually cracked the knuckles of ...