Australian cultural anthropologist Graham St. John joins Dr. Kelly to discuss his new book, Mystery School in Hyperspace: A Cultural History of DMT.

Best known as the active compound in ayahuasca, DMT has it's own fascinating history. St. John's work explores it's influence on Western culture since its action was first discovered in the 50s and 60s—from the CIA's research on its psychotogenic effects, and the artists, such as The Grateful Dead and Alex Gray, who are motivated by its psychedelic effects—to the underground research being done today.