http://articles.mercola.com/sites/articles/archive/2008/01/02/caffeine-elevates-heart-rate.aspxStudies have shown that caffeine elevates both blood pressure (BP) and heart rate, which may come as no surprise to coffee drinkers familiar with the lift that the beverage delivers. The investigators found that caffeine raised average blood pressureenCommunityServer 2008.5 SP1 (Build: 31106.3070)