Trepanation – the process of boring a hole in the skull – was used by the Ancient Egyptians, Incas, and others, and was believed in medieval Europe to cure insanity by releasing demons from the head. Today, people in The United Kingdom, The United States, and The Netherlands voluntarily undergo this procedure to attain a higher level of consciousness, believing that will increase their brain function. The documentary “A Hole in the Head” includes interviews with some of the world’s most respected neurosurgeons and anthropologists regarding the history and efficacy of this procedure.
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