A growing body of scientific research suggests that optimism is more than just a positive state of mind. Evidence indicates that having an optimistic outlook is linked to a greater likelihood of living longer. Maintaining hope has also been associated with exceptional longevity—living beyond the age of 85—as well as better physical and mental health as people age.
According to a report published by ScienceAlert, based on scientific research and long-term studies, maintaining a positive outlook on life is associated with lower stress levels, better overall health, and an increased chance of enjoying a longer life. Health scientist Jolanta Burke says that optimistic people are more likely to live longer than others. She also noted, as reported by The Conversation, that reduced stress and a positive attitude toward life are strongly connected to longevity.
Up to 10 Years Longer
One of the most notable studies began in the 1930s with a group of nuns who were asked to write autobiographical essays during their youth. Nearly 60 years later, researchers discovered that the nuns who used more positive language in their writings lived, on average, 10 years longer than those whose essays reflected a less optimistic outlook.
Higher Chances of Reaching 85
Another study found that people with higher levels of optimism had a 15% greater chance of reaching what researchers defined as exceptional longevity—living to the age of 85 or older.
Although scientists do not fully understand the reasons behind this connection, they believe optimism encourages a combination of healthy factors, including greater happiness, a stronger sense of purpose, and more meaningful social relationships. These factors are all associated with a lower risk of chronic diseases.
Life Satisfaction Is Key to Happiness
This idea is further supported by findings from the world’s longest-running study on happiness, which began in 1938 and continues today. After nearly nine decades, researchers concluded that the strongest predictor of a long and healthy life is not simply genetics, but how satisfied people are with their lives and the quality of their social relationships.
The study found that people who were more satisfied with their relationships with friends and family during middle age were healthier in their 80s. They experienced lower rates of illness and recovered more quickly from health problems. Researchers believe that strong social connections act as a protective shield against psychological stress and anxiety, benefiting both physical and mental health.
Genes and Lifestyle
Some scientists estimate that reaching the age of 90 depends roughly 30% on genetics and 70% on healthy lifestyle choices. These include diet, physical activity, and psychological well-being.
The ScienceAlert report points to American actor Dick Van Dyke, who celebrated his 100th birthday while remaining energetic and active. In his book, 100 Rules for Living to 100, Van Dyke says he never wakes up in a bad mood and considers optimism one of the biggest reasons for his happy life.
The report also highlights British naturalist David Attenborough, who has also celebrated his 100th birthday. Rather than embracing retirement, he has continued working, staying active, and pursuing his passion for nature. Researchers consider this attitude an important factor in maintaining good health and promoting longevity.
Optimism Alone Is Not Enough
Researchers emphasize that optimism by itself does not guarantee a long life. However, it appears to be one of several habits that people can actively develop, alongside regular physical activity, strong social relationships, and having a sense of purpose. Together, these factors can significantly improve the chances of living a longer, healthier, and more fulfilling life.