Why optimists are more likely to live into their nineties

In an article for The Conversation, Fuschia Sirois, a social and health psychology professor at Durham University, shared research that shows people who view life optimistically are more likely to live longer lives, often well into their nineties. In a large-scale study tracking 160,000 women over 26 years, those who reported high optimism had significantly higher chances of “exceptional longevity” compared to their pessimistic counterparts.

Optimism may boost lifespan by encouraging healthier lifestyle habits, such as regular physical activity and avoiding smoking, both key factors in cardiovascular health. Additionally, optimists tend to handle stress more effectively, reducing harmful stress-related biological responses like elevated cortisol levels, high blood pressure, and a weakened immune system—factors often linked to chronic diseases.

While optimism is partly genetic and influenced by early relationships, it can be cultivated. Techniques like visualizing your “best possible self” or setting realistic, positive goals may help nurture an optimistic outlook. If you’re not naturally optimistic, a healthy lifestyle combined with positive thinking could still increase your longevity.