Loren Cordain, PhD, is a professor in the Department of Health & Exercise Science at Colorado State University in Fort Collins, Colorado. His research emphasis is in evolutionary medicine, and he is nationally and internationally recognized for his expertise in the study of Paleolithic (Stone Age) diets and how they relate to the health and well-being of modern humans. He has contributed more than 120 publications to the medical, nutritional, and scientific literature in the past 30 years, and he is the author of these popular diet books: The Paleo Diet, The Paleo Diet Cookbook, The Paleo Answer, and The Dietary Cure for Acne. He is a member of the American Institute of Nutrition and the American Society for Clinical Nutrition. Dr. Cordain’s research is pushing the envelope regarding the role of diet and disease. He has received the Scholarly Excellence award at Colorado State University for his contributions to understanding optimal human nutrition. He has lectured extensively on the Paleolithic nutrition concept worldwide. For more information, visit Dr. Cordain’s Web site: www.thepaleodiet.com.
Joe Friel has coached endurance athletes since 1980, including runners, triathletes, duathletes, road cyclists, mountain bikers, swimmers, rowers, Nordic skiers, and endurance horse racers. These men and women ranged from novice to Olympian and included national champions, world-championship competitors, elite age-group athletes, and those who simply wanted to be in better shape, and have included teens, students, senior citizens, business owners, lawyers, doctors, line workers, and professional athletes. He has a master’s degree in exercise science and is a recognized authority on training for endurance sports, having written nine other books on the subject and serving as a columnist for two national sports publications for a decade. He is a widely sought-after speaker on the subject of training and consults with national sports governing bodies on the preparation of athletes for world competitions and the Olympics. Friel is also the founder and president of two successful businesses: TrainingBible Coaching, a sports training company with coaches in three countries; and TrainingPeaks.com, a World Wide Web-based business that provides training tools for athletes and coaches. His blog (www.joefrielsblog.com) is one of the most widely read by endurance athletes around the world.