ArticleJournal of psychiatric research2026
Personality and cognitive resilience to accelerated epigenetic aging.
Article in Journal of psychiatric research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Personality traits are associated with cognitive resilience to dementia-related neuropathology. This study examines whether personality traits are related to cognitive resilience to accelerated epigenetic aging. Participants were adults aged from 50 to 98 years (N = 2926, 58% female, Mean age = 68.72, SD = 9.57) from the Health and Retirement Study (HRS). Data on cognition and epigenetic aging measures (GrimAge and DunedinPoAM38) were obtained in 2016. Data on personality, demographic factors, and clinical, behavioral, and psychological covariates were obtained in 2014/2016. Cognitive resilience was defined as the residual from the regression of cognition on epigenetic aging measures. Controlling for demographic factors, linear regression analyses indicated that higher neuroticism was associated with worse-than-expected cognition relative to one's epigenetic aging for both GrimAge and DunedinPoAM38 epigenetic measures. Higher conscientiousness and openness were related to better-than-expected cognition relative to one's epigenetic aging across the two measures. Logistic regression further indicated that higher neuroticism was associated with a lower likelihood of cognitive resilience to accelerated epigenetic aging, whereas higher conscientiousness and openness were related to a higher likelihood of cognitive resilience. These associations were partially accounted for by disease burden, sleep quality, physical activity, smoking, depressive symptoms, childhood adversity, lifetime trauma, and APOE e4 status, and persisted when participants with cognitive impairment were excluded. There was little evidence that age or sex moderated the associations. The present study expands the literature on resilience from neuropathology to a broader systemic impact of aging to provide novel evidence that personality traits are associated with cognitive resilience to accelerated epigenetic aging.
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