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 ...

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

When you pull my finger — what causes the sound? A new study shows for the first time a knuckle cracking on MRI video. The real-time images challenge the long-standing belief that the cracking sound ...

Cracking your knuckles is something many people do out of stress, boredom, or just habit. Yet for years, it has been surrounded by fear and misinformation. Some believe it weakens the joints, while ...

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 ...

An age-old urban legend that claims cracking one’s knuckles will lead to arthritis may be old in every middle school child’s repertoire, but a look at the scientific literature finds that there is ...

Sometimes our body surprises us with strange and unexpected sounds; from hiccups, to joint cracking, nose whistling, stomach ...

There's a new twist in the debate about why knuckles crack. Yes, it turns out that "why knuckles crack" is actually a debate — despite the existence of the phenomenon for approximately all of human ...