A blood test can predict the risk of dementia in women up to 25 years before symptoms appear, researchers say. Peers have welcomed the study and said blood tests to pick up Alzheimer’s disease early were developing at pace. As levels of the biomarker increased, so did dementia risk – meaning that those with the highest levels generally had the biggest risk. “Dementia research is making huge progress and bringing great hope. “The findings show that the level of p-tau217 in the blood provides an index of the risk of developing dementia in the future.

Source: The Star March 21, 2026 03:30 UTC