Nearly 8,000 teachers and state employees in two years have shed more than 50 tons under WeightWatchers, lawmakers were told before they approved a two-year, $1.2 million extension of the weight-loss coaching. The goal is to cut health insurance costs for obesity-related problems. According to William Ashmore, CEO of the State Employees Insurance Board, significantly overweight individuals account for $1,748 more in annual healthcare costs than those whose weight is more nearly ideal.