A standard blood draw may flag Alzheimer's a decade before the first symptom
A blood test may flag Alzheimer's risk a decade before symptoms. Researchers report that measuring the protein p-tau217 can predict cognitive decline 5 to 10 years before memory problems appear, in one of the largest studies of its kind presented at the 2026 Alzheimer's Associati
A simple blood draw may soon flag Alzheimer's risk years before any symptom. Researchers report that measuring a protein called p-tau217 can predict a person's risk of cognitive decline 5 or 10 years before memory or thinking problems appear. The finding comes from one of the largest studies of its kind, presented at the 2026 Alzheimer's Association International Conference. An earlier warning matters because it widens the window for lifestyle and medical intervention before the damage becomes severe. Source: Alzheimer's Association International Conference