What is meant by the term "placebo effect"? What exactly is being described, and how is it brought about? And is this term a medical reality? Does it actually -- that is, scientifically -- exist? On this edition of ST Medical Monday, we hear from journalist Erik Vance, whose writing has appeared in Harper’s, The New York Times, Scientific American, and other publications. His new book on this topic is "Suggestible You: The Curious Science of Your Brain's Ability to Deceive, Transform, and Heal,"