any thirst," warns Pedlar. "By that time, your metabolism and energy efficiency will be severely impaired." Typically, 150 to 300ml of fluid every 15 minutes should combat dehydration. "It's a vicious circle – you don't drink enough, your blood volume
published in The Lancet medical journal showed that a period of decreased sleep over only a few days can cause a disruption in glucose metabolism – the process responsible for storing energy from the food we eat, and why marathon runners carbo-load before a
