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  "path": "/releases/2026/02/260224023159.htm",
  "publishedAt": "2026-02-24T10:21:58.000Z",
  "site": "https://www.sciencedaily.com",
  "textContent": "Subtle changes in brain blood flow and oxygen use are closely linked to hallmark signs of Alzheimer’s, including amyloid plaques and memory-related brain shrinkage. Simple, noninvasive scans may one day help spot risk earlier—by looking at the brain’s vascular health, not just its plaques.",
  "title": "Alzheimer’s may begin with a silent drop in brain blood flow"
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