GVGT kick ass leg gong fu best bone breaker

His legs won't age well, will be a cripple by age 40.
 
probably snapped soon..............bone is bone
Actually bone density can be enhanced through years of practice. Martial artists repeatedly hit hard surfaces to induce micro cracks. As the cracks heal the bone becomes more dense. It's a medical fact, not some mystical kungfu magic
 
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