Positive advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers might live longer than advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers thinkers. This is according to studies into the advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers of Americans. Boston University advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers looked at advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers on 70,000 female nurses and 1,500 male advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers veterans. They found that people who were optimists (people who thought advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers ) were more likely to live to the advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers of 85. People who were more pessimistic (those who thought negatively) were 11-15 per cent advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers likely to live to 85. Researchers say optimists (positive thinkers) manage advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers more easily than pessimists (negative thinkers). Participants in the studies answered advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers that assessed their advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers , exercise, levels of optimism, and how advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers they smoked and drank. The surveys matched these levels with advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers levels of health. A professor said: "Our findings speak to the advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers that raising levels of optimism may promote advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers and healthy ageing." Her advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers for pessimists who might want to live advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers was to, "imagine a future in which advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers has turned out well". She urged people to be more optimistic. She said it was healthier to look on the bright advice age data diets everything health less longer longevity military much negative overall positively possibility questions researchers side stress thinkers of life.