Professor Carlos de Leon is the founder of the MO'O Dragon Halau O de Leon / Lua Halau O kaihewalu and MO'O Dragon System (The Hidden Arts).

Are you a good "ground fighter"? Maybe you prefer a stand-up style of self-defense or martial arts? In a self-defense situation (not a competition),...

Depression is as old as humankind, and is one of the oldest described diseases in the history of medicine. World Health Organization predictions suggest...

A karate chop, or shuto strike, is one of the few things in life that offers visceral proof of the power of physics. If you are untrained in the martial arts and you karate chop a brick, you may break a finger or worse. But if you karate chop that brick with the proper force, momentum, and positioning, you’ll break the brick instead. “Amazingly, there are no tricks involved,” says Michael Feld, a physicist at MIT. “What you have here is one of the most efficient human movements ever conceived.”