Physiology of marathons certain physiological characteristics of marathon runners exist. The differing efficiency of certain physiological features in marathon runners evidence the variety of finishing times among elite marathon runners that share similarities in many physiological characteristics. Aside from large aerobic capacities and other biochemical mechanisms, external factors such as the environment and proper nourishment of a marathon runner can further the insight as to why marathon performance is variable despite ideal physiological characteristics obtained by a runner. The first marathon ever run was an unintentional 25 mile trek performed by Pheidippides. Pheidippides was a Greek soldier who ran to Athens from the
Marathon, Greece Marathon Dam in a valley above Marathon, in order to ensure water supply for Athens. It was completed in 1929. About 10 km² of forested land were flooded to form Lake Marathon. The beach of Schinias is located southeast of the town and it is a popular windsurfing spot and the Olympic Rowing Center for the 2004 Summer Olympics is also located there. At the 1896 and 2004 Summer Olympics, Marathon was the starting point of the marathon races (for both women and men in 2004). The area is susceptible to flash flooding, because of forest fires having denuded parts