This is what the brain looks like when someone gets Alzheimer’s
The only surefire way to confirm someone had Alzheimer’s used to be to examine the brain after death. If it was full of the plaques and tangles characteristic of the disease, then that person had Alzheimer’s.
Plaques form when the protein amyloid-beta builds up in the brain. In healthy people, amyloid is swept away. But in Alzheimer’s patients, it accumulates like garbage. Read more.