SACRAMENTO, Calif. — Snap, crackle, pop. If you're a knuckle cracker, that familiar sound when you consciously pop your joints is like comfort food. You know it might not be so healthy for your hands ...

What do you get when you combine the "Wayne Gretzky of knuckle cracking" with a magnetic resonance imaging (MRI) machine? The answer to a very old question, it turns out. By using MRI to video-record ...

It’s one of the most annoying habits, but it's also pretty mysterious. What actually causes the sound of cracking knuckles? Researchers long believed the sound was caused by the collapse of bubbles ...

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 ...

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It turns out that people who cracked their knuckles had a greater range of motion after doing so. To understand why, researchers have looked into what happens in the joint when the knuckles crack.

Ignoring generations of parents who’ve warned that knuckle cracking is bad for you, between 20 and 54 percent of Americans continue to engage in this annoying nervous habit. Many have been reassured ...