A University of Alberta study finally settles the decades-long debate about what happens when you crack your knuckles. The study published on April 15 in PLOS ONE used MRI video to determine what ...

The popping sound habitual knuckle crackers make may be annoying — or even alarming — but are they actually harming themselves? The research is somewhat limited but generally concludes that ...

Do you crack your knuckles? For decades, warnings about possible harm have caused concern about the habit — here is what the research says.

Knuckles crack when a bubble forms in a joint, new high-speed images reveal. The finding, reported April 15 in PLOS ONE, may settle a decades-old debate about the source of the sound. In 1947, two ...

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 ...

Researchers pull fingers and make a discovery. It’s a sound that may make you cringe. Or as the perpetrator, may lead to unsatisfying relief or even hopes of feigned toughness. Either way, it comes ...

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. In fact, cracking ...

Scientists think they may have solved an old question about the cracking of knuckles: Why does it make that sound? The crack apparently comes from a bubble forming in the fluid within the joint when ...

For the first time, an MRI video has been taken of cracking knuckles, answering once and for all what makes the audible pop. Michelle Starr is CNET's science editor, and she hopes to get you as ...