S. Boyd Eaton M.D. has been a “Paleo” practitioner since the late 1970’s –probably as long, or longer, than anyone else has followed a health-promoting program specifically modeled on the essential lifestyle elements of Stone Age humans. His New England Journal of Medicine article, Paleolithic Nutrition, (with co-author Mel Konner) has been called by some the original impetus for the ancestral health movement. Their 1988 book, The Paleolithic Prescription addressed physical activity and other important topics pertinent to disease prevention. Subsequently Eaton has contributed over 30 articles (often in collaboration with Loren Cordain) and 10 textbook chapters on evolutionary health promotion. He has lectured in 17 countries on 4 continents and was the keynote speaker at the inaugural AHS symposium. He lives in Atlanta and was Medical Director of the Olympic Village Polyclinic for the 1996 Olympic Games.