If there was ever any evidence for the depth of complexity within our own brains, look no further than the placebos and their effects. Both a help and hinderance to the medical community, rheumatology clinicians and researchers can agree that when testing new treatments, the placebo effect is as powerful as it is disruptive. But what is it exactly? How does it work and for which symptoms? Are there symptoms to which this effect is ineffective? How can you diminish the effect? What is the "Nocebo Effect" and what ethics are involved when dealing with placebos? To answer these questions, we've invited Professor Ted Kaptchuk, director of the Harvard-wide Program in Placebo Studies and the Therapeutic Encounter (PiPS) at Beth Israel Deaconess Medical Center in Boston, Massachusetts to be our guest today and tell us all about placebos, their effects and why they work.