On BBC Breakfast this morning there was an item about how Wales is second only to the USA in the percentage of the population that is obese. Most unhelpfully the reason was not very clearly explained, although they did mention that the criteria for surgery (gastric bands, etc) are very strict in Wales. They briefly interviewed a 20-year old man who weighs 35 stone. How can anyone get that big? Why didn't he start taking more exercise and eating less when he first put on excess weight? He must have noticed that his clothes were becoming too tight and that he couldn't run as fast on the rugby pitch before he got to 20 stone, never mind 30. I appreciate that weight creeps on insidiously and that it takes time to lose excess weight and keep it off, but I still don't understand how anyone can get that big.