Eric Mead: The magic of the placebo

Sugar pills, injections of nothing -- studies show that, more often than you’d expect, placebos really work. At TEDMED, magician Eric Mead does a trick to prove that, even when you know something’s not real, you can still react as powerfully as if it is. (Warning: This talk is not suitable for viewers who are disturbed by needles or blood.) TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give