Hypnotherapy is the use of hypnosis in psychotherapy.[59] It is used by licensed physicians, psychologists, and others. Physicians and psychiatrists may use hypnosis to treat depression, anxiety, eating disorders, sleep disorders, compulsive gaming, and posttraumatic stress.[60][61] Certified hypnotherapists who are not physicians or psychologists often treat smoking and weight management. (Success rates vary: a meta-study researching hypnosis as a quit-smoking tool found it had a 20 to 30 percent success rate, similar to other quit-smoking methods[62], while a 2007 study of patients hospitalised for cardiac and pulmonary ailments found that smokers who used hypnosis to quit smoking doubled their chances of success.[63])
In a July 2001 article for Scientific American titled "The Truth and the Hype of Hypnosis", Michael Nash wrote:
...using hypnosis, scientists have temporarily created hallucinations, compulsions, certain types of memory loss, false memories, and delusions in the laboratory so that these phenomena can be studied in a controlled environment.[45]
Controversy surrounds the use of hypnotherapy to retrieve memories, especially those from early childhood or (alleged) past-lives. The American Medical Association and the American Psychological Association caution against repressed memory therapy in cases of alleged childhood trauma, stating that "it is impossible, without corroborative evidence, to distinguish a true memory from a false one."[64] Past life regression, meanwhile, is often viewed with skepticism.[65]
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