Workers who quit smoking, lose weight, and eat right could have their health insurance premiums cut by as much as half, possibly saving them thousands of dollars per year, under a measure inserted into the Senate healthcare overhaul bill. Under the plan, individuals would have a strong financial incentive for jumping on a treadmill or signing up for smoking cessation classes, moves that would not only prolong their lives but also reduce the financial burdens of behavior-related disease on the healthcare system.