Rick Strassman is a Clinical Associate Professor of Psychiatry at the University of New Mexico School of Medicine. His new book, “My Altered States: A Doctor’s Extraordinary Account of Trauma, Psychedelics, and Spiritual Growth,” is available now.

543 – Sam Harris
Sam Harris is a neuroscientist and author of the New York Times bestsellers, The End of Faith, Letter to a Christian Nation, and The Moral Landscape. His latest book “Waking Up: A Guide to Spirituality without Religion” is available now.