In this thought-provoking conversation, bestselling author Tim Ferriss sits down with Dr. Roland R. Griffiths, a leading clinical pharmacologist from Johns Hopkins, to explore the science and transformative potential of psychedelics. With over 40 years of research and more than 370 published papers, Griffiths shares his pioneering work in reviving psilocybin studies, offering insights into how these compounds can shift consciousness, ease suffering, and open doors to new forms of healing. Blending rigorous science with personal stories, this episode is an essential listen for anyone curious about the frontier of psychedelic research and its implications for mental health, spirituality, and human potential.