Is cracking your knuckles bad for you? If so, how?
You may have heard people say that cracking knuckles leads to arthritis. There's no medical evidence to support that belief, but it is possible that cracking knuckles a lot over a long period of time could cause problems like swelling or reduced grip strength.
Knuckle cracking is probably a good habit to break. In addition to the chance that it might cause future problems, joint cracking can annoy other people. Why risk turning off a crush, a job interviewer, or someone you're trying to impress?