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 ...

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 ...

In some households, cracking your knuckles is a declaration of war. Whether you’re in the camp that can’t stand the sound or the one that can’t see what the fuss is about, you might be surprised to ...

For many people, there is a sort of deep-seated satisfaction in cracking their knuckles, which is part of the reason why it's ...

Knuckle-cracking is both commonplace and cryptic: Why on earth do our knuckles make that annoying popping noise when we crack them? Scientists have speculated on the question for decades, but only now ...

There aren’t any awards to be won for solving science’s minor mysteries—why yawning is contagious, why puppies make us melt—but that doesn’t mean we don’t want the answers anyway. Add to those ...