Does Cracking Knuckles Give You Arthritis?
Cracking knuckles is a bad habit most males have. It seems to give them a sense of security and power. So what really causes that cracking sound? Well, our knuckles are covered by the synovial capsule which is filled with synovial fluid. There are also gases that are dissolved in the fluid such as oxygen and carbon dioxide. When the knuckle is cracked, the synovial capsule is stretched and the internal pressure is lowered, creating a bubble which eventually bursts, creating that popping sound. This is also the reason why you are unable to crack your knuckles continuously due to...