In the movie Bloodsport, the Dux character, portrayed by Jean-Claude Van Damme, is seen crushing the bottom brick in a stack of five bricks. To achieve this feat, the movie says that he must be capable of executing the Dim Mak, or death touch. A different, visually less extreme version of this feat was performed by the real Frank Dux on numerous TV shows and at various exhibitions. However, instead of crushing the bottom brick in a stack of five, causing it to visibly explode, the photo on the cover shows Frank breaking in half the bottom concrete slab in a stack of two concrete slabs alternated with two fragile and easily broken ceramic tiles that are left intact. The stunt offers proof that one can hit the outside of the body leaving no noticeable harm, while damaging an essential internal organ like the heart. Like in the movie, the strike is commonly referred to as the "death touch." -Martial Arts Illustrated

Now you to can learn the secrets of the forbidden Delayed Death Touch...