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A recent study conducted by Harvard T.H. Chan School of Public Health suggests that practicing gratitude could potentially extend the lifespan of older adults, particularly by lowering the risk of mortality from cardiovascular disease.

The study utilized data from the Nurses' Health Study, focusing on 49,275 women with an average age of 79. Participants completed a Gratitude Questionnaire in 2016, rating their agreement with statements reflecting gratitude. Researchers followed up in 2019 to track mortality outcomes, identifying 4,608 deaths during the study period across various causes, with cardiovascular disease being the most prevalent.

Participants scoring in the highest tertile on the Gratitude Questionnaire exhibited a 9% lower risk of all-cause mortality over the subsequent four years compared to those in the lowest tertile, Medical News reported. Gratitude also showed protective effects against specific causes of death, notably cardiovascular disease.

Lead researcher Dr. Chen noted the study's meticulous approach, accounting for sociodemographic factors, health history, and lifestyle variables such as social engagement and optimism, which are often linked to gratitude.

"Prior research has shown an association between gratitude and lower risk of mental distress and greater emotional and social wellbeing," Dr. Chen said. "However, its association with physical health is less understood. Our study provides the first empirical evidence on this topic, suggesting that experiencing grateful affect may increase longevity among older adults."

The study, published on July 3 in JAMA Psychiatry, encourages further research to explore gratitude as a psychological resource for improving health outcomes in aging adults.

"Promoting healthy aging is a public health priority, and we hope further studies will improve our understanding of gratitude as psychological resource for enhancing longevity." Dr. Chen stated.

Co-authors from Harvard Chan School included Olivia Okereke, Henning Tiemeier, Laura Kubzansky, and Tyler VanderWeele.