<qa>  What is the second leading cause of death in the US?Overweightobesity is the second leading cause of death in the US, and is growing in prevalence at an alarming rate. Control of overweightobesity is increasingly recognized as a high national priority because of its contribution to cardiovascular CVD risk factors and ultimately to CVD itself. The short-term success of behavioral interventions for weight loss has been repeatedly documented. Unfortunately, because weight re-gain is extremely common, a disappointingly, small proportion of individuals achieve long-term weight control. Of the factors that are associated with sustained weight loss, one of the most important is continued intervention with frequent contacts. 