The truth about whether cracking your knuckles is harmful to your health.

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 ...

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 ...