You can't eliminate stress, experts say, so why not embrace it? "Stress can help you get things done, focus better and work harder," says Stuart Mitchell, a corporate trainer with Authentic Training Solutions. "It's only when it's a long-term thing that it becomes damaging." And a Pennsylvania State University study found that people's response to stress -- not the stress itself -- is what's unhealthy. The solution, say experts, is to put stress to work to make your life better.