Why do knuckles pop? Explained! (E)
"Popping knuckles is a pastime of many of us. Some do find it relieving, while some cringe at the sound of it. But have you ever wondered why do knuckles pop? Does it cause arthritis? Watch this episode till the end to know the mindblowing discovery of Dr Donal Unger, which made him win the prestigious Ig Nobel Prize. "