Benefits managers say poor health behavior is the greatest contributor to health plan costs. Members' decisions led to more than $317 billion of avoidable medical costs in 2011, according to a report from Express Scripts released Thursday.

All employees would contribute more, and the plan also eliminates a retirement program that allows workers to officially retire but remain on the job to accumulate benefits.

One of life's simple pleasures just got a little sweeter. After years of waffling research on coffee and health, even some fear that java might raise the risk of heart disease, a big study finds the opposite: Coffee drinkers are a little more likely to live longer. Regular or decaf...