I strongly believe that, "placebo" effect is probably just contextual effects. There is an experiment (I don't remember the name) with 4 cases: - A placebo pil

I strongly believe that, "placebo" effect is probably just contextual effects. There is an experiment (I don't remember the name) with 4 cases: - A placebo pills and a nice, empathic, optimistic doctor - No pills and a nice and empathic doctor - A placebo pills and a cold and pessimistic doctor - No pills and a cold and pessimistic doctor The pills have practically no effect at all, doctor behavior can have a measurable impact. Besides I don't think there is a proven effect of placebo for other than psychosomatic symptoms (in particular pain and depression symptoms).