The test may make it easier to identify whether people with memory and thinking problems have Alzheimer’s or not.

The Lumipulse G Plasma Ratio Test offers a new way to detect signs of Alzheimer's disease by identifying plaque proteins in the blood. Dr. Celine Gounder joins to explain how this could make early diagnosis faster and more accessible.

Experts say the test could dramatically improve access to earlier, more accurate diagnoses, particularly for older Americans experiencing memory and thinking problems.