A brain slice of a 70-year-old brain with Alzheimer's disease, left, and a normal 70-year-old brain at right.
A brain slice of a 70-year-old brain with Alzheimer's disease, left, and a normal 70-year-old brain at right. Nigel Cairns, Washington University NYT
A brain slice of a 70-year-old brain with Alzheimer's disease, left, and a normal 70-year-old brain at right. Nigel Cairns, Washington University NYT