When Dr. Donald L. Unger was a child, his mother and other relatives told him that cracking his knuckles would cause arthritis. Instead of just ignoring their warnings, Unger decided to take their hypothesis into his own hands. Literally.
The Knuckle Experiment
What This Means for Knuckles Everywhere
Does Knuckle Cracking Cause Arthritis?
Written by Ashley Hamer April 24, 2018
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