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

When someone stretches or bends their knuckle to crack it, they increase the space between the bones, which creates a drop in pressure in the joint. As a result of that pressure drop, the dissolved ...

Do you enjoy popping your knuckles in your leisure time? This habit may be frowned upon by many, calling it an unhealthy one. Many people crack their knuckles habitually, unconsciously, or sometimes ...

I was seven years old when I first saw someone with severe rheumatoid arthritis. I had just met one of my grandmother’s cousins, whose swollen joints and gnarled fingers fascinated and terrified me. I ...