The subject of the placebo effect has always fascinated me. The implications of the mind-body-health connection are mind blowing. I've always wondered though if anyone has ever done an experiment wherein the person administering the placebo was unaware that it was in fact a placebo. Would the effect still be the same?
This obviously could present ethical challenges so the experiment would have to be done in a way as to avoid harm. It would be hard to perform such a study but the results would sure be interesting.