Dr. Dennis McKenna is an ethnopharmacologist who has studied plant hallucinogens for over forty years. He is the author of many scientific papers, and co-author, with his brother Terence McKenna, He holds a doctorate from the University of British Columbia, He received post-doctoral research fellowships in the Laboratory of Clinical Pharmacology, National Institute of Mental Health, and in the Department of Neurology, Stanford University School of Medicine. He is a founding board member of the Heffter Research Institute, a non-profit organization focused on the investigation of the potential therapeutic uses of psychedelic medicines.
Kostas Danaos is a writer and martial artist with a background in engineering. After watching the documentary Ring of Fire, he sought out nei kung master John Chang and became one of his rare students. Kostas has since written The Magus of Java: Teachings of an Authentic Taoist Immortal and Nei Kung: The Secret Teachings of the Warrior Sages, in which he details his master’s abilities, and also the ch’i-based mechanisms behind them.