This episode is brought to you by The Farmer's Dog. Get 50% off your first box by heading to http://thefarmersdog.com/rogan today! Take ownership of your health with AG1 and get a FREE 1-year supply of Vitamin D3+K2 AND 5 free Travel Packs with your first subscription. Go to http://drinkag1.com/joerogan 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. http://www.rickstrassman.com