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Alzheimer’s may begin with a silent drop in brain blood flow
General • February 24, 2026
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.
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