Knuckle conditioning is a two-edged sword in martial arts. On the one hand hard knuckles and a conditioned fist make for a much more powerful punch in a streetfight and make it less likely you'll break your hand or sprain your wrist. On the other hand it increases the risk of arthritis and non-functional hands as you get older. What should martial artists do?
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The Strenuous Life Podcast with Stephan Kesting