In a recent NPR article, reporter Allison Aubrey covers a new study published in Neurology that suggests maintaining a fast walking pace, especially in one’s 80s, is linked to better mental sharpness. It’s an encouraging finding for anyone hoping to age healthy.
Below are key highlights from the article:
- The study findings. Aubrey reports that researchers tracked nearly 4,000 older adults and identified the top 9% of walkers by speed and grip strength as “super movers.” Compared to non-super movers, this group was significantly better off mentally. “They were 50% less likely to develop cognitive decline,” study author Nir Barzilai of Albert Einstein College of Medicine tells Aubrey. Brain scans also showed that super movers had larger hippocampal volume, a key region for memory and learning that typically shrinks with age. The study, Aubrey notes, was published in the journal Neurology.
- The muscle-brain connection. Aubrey explains that the link between physical fitness and brain health runs deeper than most people realize. Muscle, says Nathaniel Tsui of UCSF, is not just tissue that moves the body — it functions as an endocrine organ, releasing signaling molecules including BDNF, a protein that supports the growth and maintenance of brain cells. “Muscle health is cognitive health,” Tsui tells Aubrey. Dr. Amrit Saini, a geriatrician with Kaiser Permanente in Northern California, told Aubey that strong cardiovascular and lung fitness keeps blood and oxygen flowing efficiently to the brain, reinforcing the same connection from a different angle. Aubrey also reports a striking finding from the study: some super movers had Alzheimer’s-related plaques in their brains but showed no cognitive symptoms, suggesting that physical fitness may help the brain compensate even when underlying damage is present.
- Genetics, lifestyle, and what you can do. Aubrey notes that genetics play a role — some people are simply born with advantages in physical resilience. But study author Nir Milman of Albert Einstein College of Medicine tells her that lifestyle choices matter too, and that up to 14 modifiable risk factors for dementia have been identified, including physical inactivity, high blood pressure, and social isolation. Aubrey points readers toward the Brain Care Score, a free online tool developed by researchers at Mass General Brigham that helps people assess and improve their brain health across physical, lifestyle, and social dimensions. For those wondering where to start, Joe Verghese of Albert Einstein College of Medicine keeps his advice simple: “Keep mobile. Keep active.
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Aubrey sums up that while no single habit guarantees a sharp mind in old age, the evidence is growing that how fast and how far people move in their later decades is one of the clearest signals of how well the brain is holding up.
Acknowledgement: This summary was generated using AI writing tools as part of my experimental learning process. For more information, check out the original articles listed below.