Newswise — MINNEAPOLIS – Why do some people stay sharp into their 90s, even if they have the amyloid plaques in the brain that are associated with Alzheimer’s disease? And why do others reach their 90s without ever developing any plaques? These questions are explored in a new study published in the July 22, 2020, online issue of Neurology®, the medical journal of the American Academy of Neurology.
The study involved 100 people who did not have dementia and were followed for up to 14 years, when they were an average of 92 years old. The people had tests of their thinking and memory skills and imaging scans to see whether they had amyloid-beta plaques in their brains.
“With more and more people living into their 90s and even 100s, it’s increasingly important that we be able to understand and predict the factors that help people preserve their thinking skills as they…
