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Can optimism protect against dementia?

04/08/2026

Higher optimism is associated with a lower risk of developing dementia, according to a new study in the Journal of the American Geriatrics Society

In the analysis of data from the Health and Retirement Study, a nationally representative sample of older US adults, optimism was assessed using the validated Life Orientation Test-Revised in 9,071 cognitively healthy individuals within 2 years of obtaining each person’s first measure of cognitive function. Dementia was assessed during up to 14 years of follow-up. 

A 1-standard deviation increase in optimism was associated with a 15% lower risk of developing dementia, after adjusting for age, sex, race/ethnicity, education, depression, and major health conditions. 

“Identifying optimism as a protective psychosocial factor highlights the potential value of optimism in supporting healthy aging,” the authors wrote. 

URL: https://onlinelibrary.wiley.com/doi/10.1111/jgs.70392


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 The information contained in this release is protected by copyright. Please include journal attribution in all coverage. For more information or to obtain a PDF of any study, please contact: Sara Henning-Stout, newsroom@wiley.com.

About the Journal
Journal of the American Geriatrics Society is the go-to journal for clinical aging research. We provide a diverse, interprofessional community of healthcare professionals with the latest insights on geriatrics education, clinical practice, and public policy — all supporting the high-quality, person-centered care essential to our well-being as we age.

About Wiley      
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