Knuckle Cracking Is A-OK
I have written about knuckle cracking in the past, exposing the notion that doing so causes arthritis for what it is a health myth — one that is perpetuated by grandmothers all over the US. One doctor took his research on the subject quite personally. For 60 years Dr. Donald Unger cracked the knuckles of his left hand repeatedly, but used his right hand as the "control group" and left them Read more



