Having a Chinese instructor, the subject of "Dim Muk" (Dim Mahk) was discussed. Translated through Mandarin; "Dian Mai" "Dian"-meaning "to point" "Mai"-meaning "pulse/veins/artery" Translated as "to point (focus) on the pulse/veins/artery (vital)" Thought of as Qi Gong or Hocus Pocus. Simply, human anatomical charts are examined per certain time of day that the pulse/veins are at their weakest. These times are studied and a strike to these areas cause a below surface blood clot. Unlike other blood clots per contusions that remain where they were struck or created, these travel throughout the body. So far, there is no concrete medical accounts and documentation to verify this. "Dian Mai" was a term used to strike those specific areas in past history. In speaking of the past, victims died not from the technique, but from lack of proper medical treatment, which was at time, not readily available. From such a clot, inflammation, blistering sores, and infection occurred. A blow to any artery will cause such clotting, but modern medicine has common treatment for this. If not properly treated, the person could die. My Chinese instructor, although old, had these "Mythological Superstitions". But, through age, he had gained more wisdom. He told me that he had "not personally witnessed such feat". Has anyone? Such feats, as Qi Gong, are staged. So the observer is misled like that of a magic show. Martial artists need to use logical reasoning and through physics and modern medicine, realize such improbabilities.