Alberto Villoldo, Ph.D., is a medical anthropologist and psychologist who studied the shamanic healing practices of the Amazon and the Andes for more than 25 years. He is the founder of the Four Winds Society, which teaches the philosophy and practice of energy medicine. This is Dr. Villoldo's third appearance on Bulletproof Radio. On today's episode, Dave and Alberto talk about pineal glands, fate and destiny, Shamanic teachings, the fight-or-flight response, placebo effects and more. Enjoy the show!