Placebo effect

Interesting article by Ben Goldacre in Time Out about the Placebo effect, it which he notes that in placebo trials green pills are better than red, injection of a placebo works better than swallowing it!; and that a placebo operation on angina is as effective as a proper operation! He goes on to show that homeopathy works no better than placebo and probably then only because the effect of the visit to the homeopathist.

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