Harvard Study Links Optimism to Lower Dementia Risk Among Older Adults
Researchers from the Harvard T. H. Chan School of Public Health have found that optimism may significantly lower the risk of dementia in older adults. The study, published in the Journal of the American Geriatrics Society, utilized data from the Health and Retirement Study, which included a representative sample of U.S. adults aged 50 and older. Over 9,000 dementia-free participants reported their levels of optimism through a questionnaire, and their cognitive function was assessed over an average follow-up period of 6.7 years. The findings revealed that each six-point increase in optimism scores was associated with a 15% reduction in dementia risk, even after adjusting for factors such as age, sex, race/ethnicity, education, depression, and chronic health conditions. The study adds to existing evidence that optimism is linked to better cognitive function and slower cognitive decline. 
