Blood Test Could Detect Alzheimer’s Years Before Symptoms Occur

A simple blood test that can detect Alzheimer’s disease years before symptoms appear may be one step closer to reality, as researchers devise a new method to find it early.

The latest test focuses on amyloid beta proteins that have misfolded and are starting to clump together in the brain, a hallmark of Alzheimer’s disease. At one time, they could only be found during an autopsy. Now they are often uncovered with advanced imaging tests.