Don’t worry about knuckle cracking

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Are you a knuckle cracker? Maybe your mom probably told you, "that's not good for you," "you'll break your fingers," or "you'll get arthritis"? Guess what – mom was wrong!

A new study says that knuckle cracking is actually good for you.

Orthopedic surgeon Dr. Rick Lehman, founder of U.S. Center for Sports Medicine in Kirkwood, visits Fox 2 News in the Morning to explain the medical science behind knuckle cracking.