Many martial arts require very strenuous training which calls for extreme flexibility, reflexes faster than a cat and a pain threshold which is unimaginable. In order to make the transition from couch potato to Kung Fu Master, you’re going to have to do a little more than get in shape and learn how to punch and kick. As these examples show, some training methods practiced around the world can seem absolutely crazy and unnecessary. Some require levels of focus and concentration that seem super-human. Others need a student to display balance and reflexes that seem beyond any human.