This completely ignores changes in lifestyle, elimination of physical education at school and other factors. My wife teaches at a school with about a 40% homele

This completely ignores changes in lifestyle, elimination of physical education at school and other factors. My wife teaches at a school with about a 40% homeless population. Health issues including obesity are just as common at this school as the rest of the district. 100% of the children receive breakfast and lunch at the school and all are welcome to come back for dinner which a large percentage take advantage of. The school hasn't had PE in at least five years, and many of the kids will tell you flat out that when they are at home they sit around and watch tv.