MSNBC - Ten ways to live longer: "'Those low on adult conscientiousness died sooner,' Friedman concluded. Conscientiousness does not mean looking both ways before crossing the street; it means looking both ways when the light turns green so you don't accidentally run down some slow-moving pedestrian. Beyond that, a conscientious person's long-living qualities probably have to do with the fact that they are predisposed to constructively reacting to emotional and social situations, and are more likely to create work and living environments that promote good health. "