bengreenfieldfitness.com/psychedelics My guest on today's show, Dr. Matthew W. Johnson, Ph.D., is a professor of psychiatry and behavioral sciences at Johns Hopkins University.     He also happens to be one of the world’s most published scientists on the topic of the effects of psychedelics on humans and has conducted seminal research on the behavioral economics of drug use, addiction, and risk behavior.       The MAPS Capstone Challenge will help provide the funds—$30 million total—needed to complete the studies required for FDA approval of MDMA-assisted psychotherapy for PTSD. MAPS has already raised $10 million. If another $10 million are raised by September 10th, this will unlock a $10 million challenge pledge that Tim Ferriss has helped put together, alongside PSFC. Half of the pledge comes from the Steven & Alexandra Cohen Foundation (@cohengive), and the rest is split equally between Tim; James Bailey from Bail Capital; Peter Rahal, the founder of RXBAR (@peterrahal); Blake Mycoskie, the founder of TOMS (@blakemycoskie); and an anonymous donor. This challenge pledge is all or nothing. If MAPS fails to raise $10 million by September 10th, they do not receive the $10 million challenge pledge. There is no partial credit, and there is a real urgency. This $10M challenge pledge was announced in Tim's recent interview with Rick Doblin, the founder of MAPS. Every dollar matters, so if the spirit moves you, please consider giving what you can by clicking here. If you can contribute $100,000 or more over two years, please get in touch with Rick and his team by emailing capstone@maps.org.         In this conversation with Dr. Matt Johnson, you'll discover:         -The major announcement made at Johns Hopkins regarding psychedelic research...14:15           -How to explain the efficacy of psychedelics to "healthy normal" people...19:00               -The gold standard on microdosing for enhanced productivity...23:05               -Matt's response to the suggestion that he's just in it for the drugs...32:40                 -How psychedelics are used to treat addiction to tobacco...38:35               -How to handle participants who experience anxiety during the session...53:07               -The dark side of MDMA and other psychedelics...1:04:30               Episode sponsors: Kion Aminos, Organifi Gold, Joovv, Water and Wellness         bengreenfieldfitness.com/psychedelics