Tag

Brain health

Page 8 of 8

An older woman in athletic wear walks a park path with Nordic walking poles at dusk

Exercise twice a week tracked with lower dementia risk

A study of 9,714 older Americans found that people who kept up at least moderate activity - roughly 20 minutes, twice a week or more - were less likely to develop Alzheimer's or another dementia. Less frequent activity showed no clear benefit. Because it followed people rather than assigning exercise, it points to a link, not proof.

Jul 21, 2026

Fresh oranges arranged in a close-up, top-down view

News

Blood vitamin C linked to more gray matter in older adults

In 2,044 older adults in Japan, those with lower vitamin C in their blood tended to have less gray matter and weaker connections in a key brain network. It is a snapshot, so it cannot show that vitamin C protects the brain.

Jul 17, 2026