Tech & Culture
One Doctor Cracked His Knuckles on Only One Hand for 60 Years to Prove a Point — and He Was Right
Parents have been warning kids about knuckle cracking for generations, insisting it leads to arthritis. But decades of research — including one of the most dedicated self-experiments in medical history — have found no connection whatsoever. So what's the popping sound, and why does the warning keep getting passed down anyway?
