xiox writes "The UK government is planning to stop funding a study to understand obesity in children. The study fits children with accelerometers to measure how much energy each child uses in a day by moving. The results are very surprising. Those children who do sports at school do not burn more calories than those who don't. Furthermore there is no correlation between body mass index and the number of calories used! The results are very interesting, suggesting that genetics and diet are the main reasons for childhood obesity, not sport. The UK government is trying to increase the amount of sport in schools."