Regular exercise is a vital part of a healthy lifestyle and sound weight-loss program. In fact, most experts suggest that we get 60 minutes of exercise each day for optimal health. But while a little exercise is a good thing, taking exercise to the extreme can cause serious health issues, even death. When few adults exercise regularly, and many struggle to find just 20 minutes to dedicate to a workout, it may be hard to believe that some people place exercise at the center of their lives. But some people feel compelled to exercise above and beyond normal levels, often in a desperate attempt to burn every calorie they consume.