Matthew W. Johnson, Ph.D., Associate Professor at Johns Hopkins, is an expert on psychedelics, other drugs, and addiction. Working with psychedelics for 15 years, he has published 47 scientific papers on psychedelics. Matt published psychedelic safety guidelines in 2008, paving the way for a renaissance in psychedelic research. He conducted the first research on psychedelic treatment of tobacco addiction in 2014, and the largest study of psilocybin in treating cancer distress in 2016. His recent psilocybin review recommended placement in Schedule IV upon medical approval. He has personally guided >100 psychedelic sessions. Matt also conducts behavioral economic research on both addiction and sexual risk. He published the first human research determining cocaine administration effects on sexual decisions, and has conducted extensive nicotine/tobacco research. He has published studies on nearly all psychoactive drugs classes, and is President of the Psychopharmacology and Substance Abuse Division of the American Psychological Association. Matt has been interviewed by the New York Times, Washington Post, Wall Street Journal, BBC, CNN, Fox Business News, NPR, CBS News, and NBC News.