Midlife activity linked to fewer memory and thinking complaints
Women in the most active third in midlife had 20% lower odds of at least two later memory or thinking complaints than the least active third.
Cohort study
Limit: Only women who completed the later complaint survey were included
Edited by Boris Djordjevic · AgingResearch.News
In 4,397 women, researchers examined whether midlife physical activity was associated with later memory and thinking complaints. The observational, nested case-control study used data from the New York University Women's Health Study. Women averaged 46.2 years at enrollment and 78.7 at the later assessment, with an average follow-up of 32.6 years. They reported weekly activity at enrollment and later answered six questions about memory, understanding and navigation.
After accounting for demographics and health conditions, women in the most active third had 20% lower odds of reporting at least two complaints than those in the least active third. The association was stronger among women who had never smoked.
Why it matters
Memory and thinking complaints can precede Alzheimer's disease by years, making them relevant to research on cognitive health as women age.
Caveats
This observational study measured self-reported complaints, not dementia diagnoses, and cannot establish cause and effect. Activity was measured only at enrollment, and the analysis included only women who completed a later complaint survey.
Exercise is part of Bryan Johnson's Blueprint
The paper
Midlife physical activity and late-life subjective cognitive complaints in women
University of Pittsburgh; New York University
The Gerontologist, Aug 18, 2026, Open access
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