Positive Thinking the Key to a Longer Life?

A growing mountain of evidence suggests that an upbeat, positive attitude could be the key to a long life. Some of the best scientific proof comes from the world of religion. At the Franciscan Handmaids of Mary in New York, there can be an 80-year divide between the sisters who teach and the children in their classes. The age difference hardly matters. Many of the nuns are aging remarkably well, and doctors wonder if it's a matter of personality. "I realize it is not how long you live...Full Story