Since I ran a marathon the weekend before last, people have telling me that I’m a bit daft. That running that sort of distance is bad for your health and a one way ticket to life-long injury. A New York Times article today tells the tale how we have evolved to be the best long distance running animals on earth. Sure I should have trained for the race, but even without training we’re all built to go the distance. So even if you haven’t trained, might as well head out and try something ridiculous.