Optimism is a psychological attribute characterised as the general expectation that good things will happen, or the belief that the future will be favorable because one can control important outcomes. It is an attitude to life which can be significantly undermined by the challenges often experience in later life. Numerous studies have reported that more optimistic individuals are less likely to suffer from chronic diseases and die prematurely. The results of this new study go further and suggest that optimism is specifically related to 11 to 15% longer life spans, on average, and to greater odds of achieving “exceptional longevity,” that is, living to the age of 85 or beyond. These relations were independent of socioeconomic status, health conditions, depression, social integration, and health behaviors (e.g., smoking, diet, and alcohol use).
These findings indicate that optimism is an important psychosocial resource for people to pay attention to and develop in later life. This is especially important as ageist stereotypes can begin to be internalised as people age.
Access to the original research here (behind a paywall) https://www.pnas.org/content/116/37/18357