Bob & Brad on MSN

What is Causing Your Knee Pain? Osteoarthritis? How to Tell

Bob & Brad discuss signs and tests that can be done to assess if you may have knee osteoarthritis. With knee osteoarthritis, ...

Doctor explains exactly what happens to your bones when you crack your knuckles

Your joints actually crack as a result of gas. A gas-filled cavity - known as tribonucleation - forms in the synovial fluid ...