It might make you cringe, or it might bring you sweet, satisfying relief. Cracking your knuckles is one of those oddly divisive habits. Some people do it absentmindedly, while others can't stand ...

Dr Chris van Tullekan questions that piece of perennial parental advice: don’t crack your knuckles or you’ll get arthritis! One researcher, Dr Donald Unger, actually cracked the knuckles of ...