A Hallmark of Alzheimer's Can Show Up In Young People Too

We all worry about Alzheimer's disease from time-to-time, especially if we've had the unfortunate experience of watching a loved one suffer from it late in life. Now new research has revealed that a key hallmark of the encroaching disease, the accumulation of an abnormal protein in the brain, can start in people as young as 20 years old - younger than scientists ever imagined.