Dr. Thomas Hardtmuth, MD, born in 1956, is a physician and freelance writer. He studied medicine in Munich and works as a senior physician specializing in thoracic surgery at the Heidenheim Clinic. Dr. Hardtmuth lectures and leads seminars in the field of medical and anthropological issues. His publications include Das verborgene Ich: Aspekte zum Verständnis der Krebskrankheit (The hidden "I" Aspects of understanding cancer), 2003 and Denkfehler. Das Dilemma der Hirnforschung (Errors in thinking: The dilemma of brain research), 2006.