 We were all told this growing up. Be grateful for what you've got. New research says that attitude of gratitude may also help you live longer. A new Harvard study of older female nurses found those who maintained a grateful outlook on life had a decreased risk of death. In the highest level of gratitude, people had a 9% reduction in risk of death from any cause compared to those in the lowest gratitude level. Attitude is everything it seems like at times, right? That's what it sounds like. What did they say about cancer?