Andrew Newberg, M.D., is the director of research at the Myrna Brind Center of Integrative Medicine at Thomas Jefferson University Hospital and Medical College. He is the author of several books, including the bestselling Why God Won't Go Away, and his research has been featured in Time, Newsweek, and O, The Oprah Magazine, and on the Discovery Channel, the National Geographic Channel, the BBC, and NPR. Mark Robert Waldman is executive MBA faculty at Loyola Marymount University, where he teaches the NeuroLeadership program. He is a business and personal development coach and the author of twelve books, including Words Can Change Your Brain, coauthored with Newberg.