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The U.S. population is facing an obesity crisis wrought with severe health and economic costs. Because social and environmental factors have a powerful influence over lifestyle choices, a national obesity prevention strategy must involve population-based interventions targeted at the places where people live, study, work, shop, and play. This means that policy, in addition to personal responsibility, must be part of the solution. This article first describes the emergence of and theory behind the obesity prevention movement. It then explains how government at all levels is empowered to develop obesity prevention policy. Finally, it explores eight attributes of a promising state or local obesity prevention policy and sets the obesity prevention movement in the context of a larger movement to promote healthy communities and prevent chronic disease.

These data were reviewed independently by an orthopaedic surgeon, an accident and emergency physician, a neurosurgeon, and an anaesthetist. Each, while blinded to the opinions of the other reviewers, gave an opinion as to whether the patient could have survived their injuries, given cardiopulmonary care by general public bystanders and prehospital care by a trained paramedic team. The deaths were categorised into "potential survivor", "definite death", and "unclear/insufficient information".The four sets of independent opinions were then read in conjunction to ascertain the degree of agreement between specialists on the most likely outcome in each case. For each patient the number of "potential survivor" and "definite death" responses was recorded.