The idea of optimism leading to better health has been studied. Researchers have reviewed the results of over 80 studies to look for common findings. They found optimism had a remarkable impact on physical health. The study examined overall longevity, survival from a disease, heart health, immunity, cancer outcomes, pregnancy outcomes, pain tolerance, and other health topics. It seemed that those who had a more optimistic outlook did better and had better results than those who were pessimistic.
The message is that having a positive attitude can boost your physical health, no matter what might be ailing you. The researchers also noted that optimism seemed to have consistent benefits for people regardless of demographic factors such as income level or overall health status.