There is no evidence that cracking your knuckles inflames the joints and leads to arthritis. The cracking causes the bones to pull apart, forming a gas bubble in the joint, and thats what makes the sound cracking. Although cracking your joints will not lead to arthritis, overzealous cracking can injure the ligaments that support those joints. That usually results in mild pain, which will go away if the knuckle-cracker takes a break from his noisy hobby. In severe cases, it can weaken one's grip by loosening the tendons that attach muscle to bone.
Answered by
Foxy
at
Jan 31, 2010 01:39 PM