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, ...

Knuckle cracking is very common. Many people do it everyday instinctively, but never figure out why or what causes the popping sound. There have been debates about what the sound of knuckle cracking ...

In a study published Wednesday by the scientific journal PLOS ONE, the researchers used MRI video to determine what triggers the joints in the finger to cause the distinct sound. They observed that ...

I have no idea why popping knuckles makes this noise, but it was established it does no harm back in 1998, an achievement for which Donald Unger won the Ig Nobel medicine prize in 2009. Every day for ...

Is knuckle cracking harmless? According to Dr David Abbasi, occasional pops are fine, but frequent forceful cracking can irritate tissues.

Nearly all of us have experienced our joints ‘pop’ at some point in our lives. Whether it was from cracking our knuckles, getting adjusted by a chiropractor, or the inadvertent sound that sometimes ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

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

If you’ve ever popped or cracked your joints — by accident or on purpose — you’re not alone. There’s even a medical name for that crackling, clicking or popping sound your bones make: crepitus.