biostudies-literatureLor YNIA NIH HHSNational Institute on Aginge71169https://www.ebi.ac.uk/biostudies/studies/S-EPMC12848898biostudies-literatureUnknown22(1)<h4>Introduction</h4>Volunteering is linked to cognitive benefits in aging, but evidence in diverse populations is limited.<h4>Methods</h4>We examined volunteering and cognition in Kaiser Healthy Aging and Diverse Life Experiences Study/Study of Healthy Aging in African Americans participants (N = 2789) with unimpaired cognition at baseline. Volunteering and frequency of volunteering in the past year at baseline were self-reported, and cognition (executive function [EF], verbal episodic memory [VEM]) was assessed with the Spanish and English Neuropsychological Assessment Scale across 4 waves (range of follow-up: 2-6 years). Linear mixed-effect models adjusted for demographics.<h4>Results</h4>Participants were 73.8 ± 7.8 years on average; 62% women; 45% Black, 21% White, 18% Asian, and 17% Alzheimer's & dementia : the journal of the Alzheimer's AssociationThe impact of volunteering on cognition and cognitive decline in older diverse cohorts: KHANDLE and STAR.PMC12848898R01AG052132R01AG050782Mayeda ERHokett EColbeth HChanti-Ketterl MWhitmer RAChen NXFletcher ELor YGilsanz PTandel NZlatar ZZfalseThe impact of volunteering on cognition and cognitive decline in older diverse cohorts: KHANDLE and STAR.<h4>Introduction</h4>Volunteering is linked to cognitive benefits in aging, but evidence in diverse populations is limited.<h4>Methods</h4>We examined volunteering and cognition in Kaiser Healthy Aging and Diverse Life Experiences Study/Study of Healthy Aging in African Americans participants (N = 2789) with unimpaired cognition at baseline. Volunteering and frequency of volunteering in the past year at baseline were self-reported, and cognition (executive function [EF], verbal episodic memory [VEM]) was assessed with the Spanish and English Neuropsychological Assessment Scale across 4 waves (range of follow-up: 2-6 years). Linear mixed-effect models adjusted for demographics.<h4>Results</h4>Participants were 73.8 ± 7.8 years on average; 62% women; 45% Black, 21% White, 18% Asian, and 17% 2026-01-01T00:00:00Z2026 Jan2026-06-13T06:23:55.445Z2026-06-13T03:12:30.088ZS-EPMC128488984160340710.1002/alz.71169