The Effects of Traditional Karate on Martial Arts

Tim Ferriss: I have one quick question about your views on real martial arts. You said that you came to your conclusion based on a sparring match between yourself and one of your fellow Navy seals. From my observation, Jiu Jitsu guys collect some headshots while going in for a takedown. If a traditional Karateka karate practitioner doesn't hold back, would this have some devastating effects in the long run similar to what pro football players experience? Tim Ferriss: My mind is still open, but that's not likely. He says hitting someone in the head is not a guaranteed knockout by any stretch of the imagination.