Evidence-first health & aging science Newsletter
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Brain health

Page 9 of 9

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verdict

Phosphatidylcholine: uses, evidence, dosing and safety

Phosphatidylcholine's best-studied use is ulcerative colitis, where early promise did not survive the largest trials. Most other claims are weak, and gut bacteria turn its choline into TMAO, a debated heart concern.

Jul 22, 2026

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News

Exercise twice a week tracked with lower dementia risk

In 9,714 older Americans, those keeping up at least moderate activity - roughly 20 minutes, twice a week or more - were less likely to develop dementia. Less frequent activity showed no clear benefit. It points to a link, not proof.

Jul 21, 2026

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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

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