Joints often crack due to harmless gas bubbles in fluid or tendons moving over bones. While usually normal, persistent pain, swelling, or stiffness co ...

This is exactly what happens in inflammatory arthritis, which is a condition where the immune system mistakenly attacks ...

For some people, it is a way to focus, while for others, it is simply a nervous reflex that feels right. Yet it is also one of those habits that quickly draws stares and warnings from friends or ...