Brisk walking in seniors linked to sharper memory as they age
TL;DR Summary
A study of about 4,000 older adults found that those who walk faster than roughly 93% of peers (the so‑called “super‑movers”) had about a 50% lower risk of cognitive impairment and a 60% lower risk of dementia over 3.4–5.4 years, and tended to have larger hippocampi on scans; postmortem brains showed similar Alzheimer’s changes across groups, suggesting greater brain resilience rather than immunity, with ongoing physical activity supporting brain aging.
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