Male and female athletes from Ethiopia and Kenya have enjoyed unparalleled success in distance running events all over the world, including the Olympic Games, the World Track and Field Championships, and the World Cross-Country Championships. Ethiopian and Kenyan Distance Runners: What Makes Them So Good? provides an overview of several potential genetic factors that might contribute to the success of Ethiopian and Kenyan distance runners, based on recent empirical evidence. The DVD also explores a number of potential physiological factors that have a positive impact on the performance of these elite distance runners, based on empirical and anecdotal evidence.