Do people who are optimistic live longer? Here's what the research shows

Numerous research endeavors have revealed that individuals with an optimistic outlook tend to experience enhanced levels of overall well-being, improved sleep quality, reduced stress levels, and even better cardiovascular health and immune system function. Now, a recent study has further demonstrated a correlation between optimism and longevity.

For this study, researchers monitored the lifespan of approximately 160,000 women aged 50 to 79 over a span of 26 years. At the study's outset, the participants completed a self-assessment survey gauging their levels of optimism. Based on their responses, women with the highest scores were classified as optimists, while those with the lowest scores were categorized as pessimists.

To conduct the study, researchers monitored the lifespan of nearly 160,000 women aged between 50 and 79 over a period of 26 years. At the study's commencement, the women completed a self-assessment survey to gauge their levels of optimism. Those with the highest scores on the survey were classified as optimists, while those with the lowest scores were deemed pessimists.

In 2019, the researchers conducted a follow-up with the surviving participants and also analyzed the lifespan of those who had passed away. They discovered that individuals with the highest levels of optimism were more likely to live longer. Furthermore, optimists were also more likely than pessimists to reach their nineties, a phenomenon referred to as "exceptional longevity," considering that the average lifespan for women in developed countries is around 83 years.

What makes these findings particularly noteworthy is that they persisted even after considering other factors known to influence lifespan, such as education level, economic status, ethnicity, and the presence of depression or chronic health conditions.
However, since this study focused solely on women, it remains unclear whether the same holds true for men. Nevertheless, another study that examined both men and women found that individuals with the highest levels of optimism enjoyed a lifespan that was between 11% and 15% longer than those with the least optimism.

Research from multiple studies indicates that optimism correlates with adhering to a healthy diet, maintaining physical activity, and being less inclined to smoke cigarettes. These positive behaviors are widely recognized for their role in enhancing heart health and lowering the risk of cardiovascular disease, a leading cause of mortality worldwide. Embracing a healthy lifestyle is also crucial for mitigating the risk of other potentially fatal conditions, such as diabetes and cancer.

However, while leading a healthy lifestyle may contribute to the longer-than-average lifespan of optimists, it appears to account for only a portion of the association between optimism and longevity. According to the findings of the latest study, lifestyle factors explain just 24% of the connection between optimism and longer life, suggesting that various other factors influence the lifespan of optimists.

One plausible explanation could be attributed to the way optimists handle stress. When confronted with stressful situations, optimists tend to confront them directly, employing adaptive coping mechanisms to address the source of stress or adopt a less stressful perspective. For instance, optimists engage in problem-solving and strategizing to manage the stressor, seek support from others, or endeavor to identify a positive aspect amidst the challenging circumstances.