Why section
And here we go again ;) Is it harmful to crack your fingers? Probably not. Finger crunching is considered a bad habit, and podiatrists advise to get rid of it. Meanwhile, the American doctor Donald Unger put a curious experiment: more than 60 years, he daily crunched the fingers on his left hand, but did not do it on the right. By the age of 83, he had failed to notice a difference in the condition of his knuckles, and neither of his hands showed signs of arthritis. This unique research was awarded the 2009 IG Nobel prize...