Good news about knuckle cracking: Scientific American

“For 50 years, the author cracked the knuckles of his left hand at least twice a day, leaving those on the right as a control. Thus, the knuckles on the left were cracked at least 36,500 times, while those on the right cracked rarely and spontaneously.”

via Crack Research: Good news about knuckle cracking: Scientific American.

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About alphacarey

Professor, Life Sciences Department, Palomar College, San Marcos CA
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