Placebos work even when you know[1] [1] http://www.scientificamerican.com/podcast/episode/placebos-work-even-when-you-know-10-12-23/ http://www.scientificameri

Placebos work even when you know[1] [1] http://www.scientificamerican.com/podcast/episode/placebos-work-even-when-you-know-10-12-23/ http://www.scientificamerican.com/podcast/episode/placebos-w...