
Researchers report that a blood test measuring phosphorylated tau p-tau217 can identify women at elevated dementia risk decades before symptoms. The new finding that biological ageing accelerates sharply at two distinct life stages underscores the value of early biomarker detection and suggests there may be critical periods when disease‑related processes become more likely to accelerate. Combining dietary, lifestyle and molecular biomarker studies could test whether interventions during those windows change long‑term risk signals.
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