Comments by "craxd1" (@craxd1) on "The Occult #314: Hypnosis, History and Usage" video.
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Needless to say that this was at the root of anesthesiology, who's primary concern is making the patient forget (amnesia) a bad experience. In some surgeries, there may be no opioid narcotic involved until the end, (whether or not they are always needed is not clear), when the counter is given for Propofol, and one starts to be aroused to stop post-operative pain. It's according to how severe the surgery is, but the anesthetist's main function is to make you forget, and keep you from moving during surgery, generally via a paralytic.
In psychiatry, they can use barbiturates and benzodiazepines to help along the hypnotic state, when trying to coax the patient into reliving a memory, or to cause one to forget.
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