Agnès Lacreuse’s research addresses the biological factors that contribute to differential aging trajectories in males and females. Because human cognition is strongly influenced by sociocultural and environmental factors, sex differences in cognitive and brain aging may be best studied in an appropriate primate model. As a Family Research Scholar, she developed a grant proposal for the National Institutes of Health entitled “Sex Differences in Cognitive and Brain Aging: A Primate Model.” Lacreuse has used her data to identify possible targets for sex-specific interventions designed to promote cognitive health throughout the lifespan in aging men and women.