Chronic disease is a major problem in U.S. health care. More than one-third of Americans have one or more chronic diseases, including heart disease, diabetes, and cancer. The personal costs to patients and families are often severe, daily, and ongoing. The economic costs to society are almost $1 trillion

An old cliche for getting to know someone in a new social situation entails asking, "What's your sign?" The notion, of course, is that a simple identifier such as astrological sign would provide grounding for a potential relationship - romance, friendship, or even a new bowling partner. As there are