Episode 10: Powerful placebo by Harvard University published on 2012-06-27T13:50:25Z Find out why HMS Associate Professor of Medicine Ted Kaptchuk is trying to understand the magnitude, duration and boundaries of placebo effects. Plus, in the process of studying the genetic roots of a horrific disease, researchers discover a new way to create adult stem cells. Harvard Medical School Office of Communications and External Relations. Feb 10, 2011. Copyright 2012 The President and Fellows of Harvard College.