  urlLink HoustonChronicle.com - Immigrants outliving those born in the land of free time and fries : "Immigrants who come to the United States live an average of three years longer than people born here, new research shows in a surprising finding that challenges some common beliefs. A growing body of evidence indicates that the life span difference reflects both immigrants' innate vitality and their reluctance to embrace Americans' drive-through, drive-everywhere mentality. They also smoke less. " 
