News in Brief Neuroscience

Despite Alzheimer’s plaques, some seniors remain mentally sharp

Proteins linked to dementia don’t diminish memory in some brains

elderly woman

MANY MARBLES  A small number of very old people retain good memories, despite having signs of Alzheimer’s in their brains, a new study suggests.

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By Laura Sanders

- More than 2 years ago

SAN DIEGO — A small number of people maintain razor-sharp memories into their 90s, despite having brains chock-full of the plaques and tangles linked to Alzheimer’s disease.