Placebo effect video

Here's a nice summary of some of the current understanding of the placebo effect. I'm also a fan of the fact that the efficacy of a placebo pill increases with the geometric complexity of its shape.

Also, the point at the end about using the research on placebos is bolstered by research on the nocebo effect -where contextual cues make the condition worse (though the nocebo effect lacks much of the placebo effect's nuance).