http://articles.mercola.com/sites/articles/archive/2008/01/02/americans-need-exercise.aspxMore public health efforts are needed to get Americans off the couch and onto the treadmill or the exercise bike. As many as 60% of American adults remain inactive, despite the long list of well known health benefits derived from regular exercise. StudiesenCommunityServer 2008.5 SP1 (Build: 31106.3070)