U.S. employers can expect to see healthcare costs rise by 8.5 percent in 2012, compared with an increase of 8 percent in 2011, according to the annual Behind the Numbers report on medical cost trends, published by PwC's Health Research Institute. However, mitigating changes in health benefit plan designs, including increased cost-sharing with employees, could keep employers' costs increases to an average of 7 percent next year. Meanwhile, American workers are beginning to show signs of post-recession stress and the effects of delayed care taking a toll on their health.