✗ The myth everyone repeats
Cracking your knuckles will cause arthritis or permanent joint damage.
✓ What is actually true
Multiple scientific studies have found no causal link between knuckle cracking and arthritis. The popping sound comes from bubbles in joint fluid collapsing, a normal physiological process. Long-term studies, including one by Dr. Donald Unger who cracked only one hand's knuckles for 60 years, showed no increased arthritis risk.
Reception
The receipts 2 sources