In April, a group of scientists made a cracker of a claim: They finally figured out why knuckles crack. But any scientific finding requires confirmation, and now other researchers are on the case. A ...

Find out how the cracking of knuckles works for the same reason deep sea divers have to take breaks as they ascend, soda fizzes, and water boils instantly in a vacuum. We already know, thanks to a ...

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 ...

Knuckle cracking is a common habit, but many people still believe it weakens the joints. A top arthroscopy and sports medicine expert breaks down what really happens inside your fingers when they "pop ...

Cracking your knuckles might feel satisfying, but it often earns disapproving looks or even dire warnings. For decades, people have believed that this seemingly harmless habit could lead to arthritis ...

The reason why knuckles pop or crack when stretched is largely a mystery, but a recent study claims it's because of popping fluid bubbles. When these bubbles collapse or even partially collapse in a ...

Scientists think they may have solved an old question about the cracking of knuckles: Why does it make that sound? The crack apparently comes from a bubble forming in the fluid within the joint when ...