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At no point did either of the intervention groups report less pain or better function than the placebo group.
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Luana Colloca, a colleague of Benedetti’s, who is now based in the United States, at the National Institutes of Health, have expanded on these studies. They have found, for example, that diazepam—more commonly known as Valium—has no discernible effect on anxiety unless a person knows he is taking it.
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Think about that for a minute. If you were born under a bad sign, you died five years younger from the same diseases as people born under good signs. But only if you believed in Chinese astrology.