An anonymous reader writes "For most of us, the 'placebo effect' is synonymous with the power of positive thinking; it works because you believe you're taking a real drug. But a new study rattles this assumption. Researchers at Harvard Medical School's Osher Research Center and Beth Israel Deaconess Medical Center have found that placebos work even when administered without the seemingly requisite deception. The study was published on December 22 in PLoS ONE."
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