Leading the field: Paula RadcliffeThe Athens Olympic Marathon in 2004 was meant to be Paula Radcliffe's race. Since her marathon debut in London in 2002 the British world record holder had never been defeated over the distance. Certainly the Kenyans
to external influences such as topography, weather and time of day. If you're completing a hilly race, for example, you might need to slow your pace on the hills and raise it on the flats in order to run with an even heart rate. Even if you've paced yourself
A camel can survive for up to two weeks without a drink in desert conditions. When they do have a chance to drink, they can devour as much as 200 litres of water a day and a third of their body weight inside 10 minutes. Unlike humans, though, camels
