A new study from the University of California, San Diego, suggests a simple blood test could help predict dementia decades before symptoms appear.
Researchers analyzed blood samples from more than 2,700 women between the ages of 65 and 79 who were part of a large national memory study that began in the late 1990s. They measured a protein in the blood called p-tau217 and then followed the women for up to 25 years to see who later developed dementia…