2009 Nov 28, 3:50The downside of the placebo the nocebo: "This is the amazing world of the nocebo effect, where negative expectations can induce unpleasant symptoms, in the absence of a physical cause.", "In two of
them, the consent form contained a statement outling various gastrointestinal side effects, and in these centres there was a sixfold increase in the number of people reporting such symptoms and
dropping out of the trial, compared with the one centre that did not list such side effects in the form."
nocebo placebo science medicine ben-goldacre
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