There's no question that increasing physical activity in children—in fact, in all of us—is a good idea. But I think we need to know more about the differences between children; some children, and indeed adults, are more susceptible to obesity and more susceptible to cardiovascular disease and diabetes. So we not only need to be able to put in general measures, but we also need research to understand the specificity of this, so we can really produce targeted measures that go beyond increasing health fitness to really address the underlying problem.
On October 26th, 2006. See this statement in context.