Pushing the limits of the body Just how far can the human body be pushed in the name of sport? Well, a pretty long way, as was proved in a recent experiment in France. For six days and six nights two athletes ran and rode virtually non-stop. Extreme distance runner Michael Micaletti even set a new world record - he ran 822.31 kilometres. But how did he cope, both physically and mentally? More about: Health, Sleeplessness, Sport