From the 1830s to the Civil War, Americans could be found putting each other into trances in parlors, on stage, and in medical consulting rooms. Emily Ogden’s (University of Virginia) new book is “Credulity: A Cultural History of U.S. Mesmerism.” Jeff Dyche (James Madison University) says that when we mess with the 24 hour clock, there are all kinds of bad side effects. Daniel Hirshberg (University of Mary Washington) explores the subconscious with his students by wiring meditating students up to brain-imaging headsets. And Graham Schweig (Christopher Newport University)says “deepening the heart” is the real aim of many of India’s yoga traditions.