Eeew soy! No thank you.... Oh are we talking about cannibalism? Not to detract from the humor, but human flesh can contain Prion Disease and you also run the risk of Kuru (Creutzfeldt–Jakob disease) or Wendigo diseases that are much like Mad Cow (I guess the term could be Mad Human Disease?) and make you go insane then die. It's not a guarantee that you'll go insane, but the disease is most common in the brain, marrow, and small intestine. Cannibalism has been practiced for a long time, especially in the south west Pacific and New Guinea. Cook the meat thoroughly and you should be ok, just stay away from the brains and small intestine (which is just gross because of the risk of poop).