It's pretty well established that cracking your knuckles doesn't have any adverse health effects, but what's really happening ...

Sophisticated imaging techniques have now revealed that when a booster vaccine is given in the same location, those ...

Max Scherzer's thumb pain continues to puzzle. Arden Zwelling explains why the veteran isn't close to a return and what that means for the Blue Jays' rotation.

Celtics guard Jrue Holiday, who's excelled as a shooter since his mallet finger injury, took a step forward in his recovery.

“However, if your knuckles start to hurt ... typically in small hand and feet joints. Rheumatoid arthritis is a chronic inflammatory disease that can affect any age but most commonly occurs ...