Have you  wondered why children always seem to have  of energy and never run out of ? Researchers have discovered that children have the stamina and levels of  of endurance athletes. In , scientists say children's  recover from "high-intensity exercise" a lot quicker than athletes. A study looked at the performance levels of children when they were cycling, and compared their  to that of athletes. Researcher Dr Sebastien Ratel said: "We found the children used more of their  metabolism and were therefore less tired during the high- physical activities. They also recovered very quickly - even  than the well-trained adult endurance athletes."
The researchers hope that their  will help scientists better understand how the human body changes with . It could lead to advances in the fight against diabetes and other diseases. Dr Ratel said the research was  important as more children were becoming less . He warned: "With the rise in diseases related to physical inactivity, it is  to understand the  changes with  that might contribute to the risk of disease." He added that children should maintain their fitness as they grow up and play as  as they could so they remain healthy as . He said: "Children seem to have the ability to play and play and play, long after adults have become ."