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

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

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 ...