\Allan Hamilton started his working life as a janitor. He went on to become a Harvard-trained brain surgeon. He is a decorated Army veteran who led multiple high-altitude expeditions on behalf of the U.S. Army Altitude Research Division. He served as Commanding Officer of the 1986 U.S. Army Mt. McKinley Medical Research Expedition. His team spent six weeks conducting research while encamped on Mt. McKinley at 16,000 feet, with temperatures dropping to below thirty degrees below zero. He is an avid skier and a member of the Western Division of the Professional Ski Instructors Association (PSIA). <br>Dr. Hamilton holds four professorships at the University of Arizona in Neurosurgery, Radiation Oncology, Psychology, and Electrical Computer Engineering. Dr. Hamilton has authored five non-fiction works that have won numerous literary awards and been translated into several languages. Dr. Hamilton has been selected as “One of the Leading Intellects of the Twenty- First Century” and has been called “the prototype of the modern Renaissance individual.” <br>Dr. Hamilton studied creative writing for two years under Rod Serling, the creator of the TV series The Twilight Zone. Hamilton has worked for over 19 years as the senior medical consultant for the hit TV medical drama, Grey’s Anatomy. He is currently at work on a seventh book on the human brain due in 2023. His insights in non-fiction have helped to inspire educators, tech leaders, politicians, military strategists, filmmakers, and scientists worldwide. <br>The author lives with his wife Jane in Tucson, Arizona, alongside their extended family, including their wonderful grown children and spouses and beloved grandchildren.\