A new study with heart patients finds that a high resting heart rate may be a predictor of a shorter life expectancy.
http://cnn.com/video/?/video/health/2010/10/27/hm.heart.rate.cnn
A new study with heart patients finds that a high resting heart rate may be a predictor of a shorter life expectancy.
http://cnn.com/video/?/video/health/2010/10/27/hm.heart.rate.cnn