To see the actual video of the Cameron interview, you will need to download this zip file: Dim-mak Interview. There are numerous videos on the Internet that show what happens when pressure point "masters" demonstrate their techniques against their own students or willing believers. In these videos, the techniques always work. There are also videos on the Internet that show what happens when pressure point "masters" demonstrate their techniques against martial artists, or even non martial artists, who are not their students or believers in their baloney. In these videos, the techniques do not work, and the "masters" have a multitude of excuses for why the techniques did not work. These techniques appear to be highly effective if you are ever attacked by your own students; just do not expect them to work against anyone else.

What is Dim-mak?

Kyusho, Dim-mak, and other pressure point fighting arts use strikes to pressure points to subdue or knockout opponents. Most are based on ancient Asian concepts of meridians.

The meridian theory asserts that the body is marked by channels of chi flow, each related to a specific organ. Each of these channels has either yin or yang energy and an associated "element" (wood, metal, earth, fire, water). The pressure points act as "gates" along the meridians, where the flow of energy can be manipulated. The meridians are assigned a quality which corresponds to one of five elements: earth, metal, water, wood, and fire. The five elements are interrelated in two cycles: a cycle of creation, and a cycle of destruction. In other words, each element has a creative and destructive side. For example, "metal" creates "water'" meaning that, by stimulating a point on a "metal" meridian (such as the lung meridian), you increase the energy of the "water" meridians (kidney and bladder). "Metal" also destroys "wood," so by stimulating a "metal" meridian point you decrease the energy in the "wood" meridians (liver and gall bladder). Elemental terms, such as "metal," "wood," etc., are not intended to be literal descriptions of organs or meridians. The term "metal" merely describes a quality that the lung meridian possesses in relation to other meridians.

Certain rules of attack predict the effects of attacks on pressure points associated with these channels. George Dillman's "Advanced Pressure point fighting of Ryuku Kempo" lists these attacks as: attacks on successive points on the same meridian, attacks by the cycle of destruction (Water, Fire, Metal, Wood, Earth, Water, etc,),  attacks on yin and yang, and attacks by the diurnal cycle (chi flows along meridians in predictable ways and following the sequence causes more pain).

The system uses a mumbo jumbo collection of other "rules" that are supposed to help you choose a second point to attack after you have struck another point and the opponent has moved unpredictably. You are supposed to analyze the available targets and select one that follows a rule and then strike it. The pressure points are dime sized or smaller and supposedly only respond only to striking in specific directions, so making such a careful decision would require more time and precision than exists between blows in a real fight.