Neurons are responsible for memory in an area of the brain

The study was published on Sept. 30 in The Journal of Neuroscience.

These neurons did not harbor tau tangles, a signature hallmark of Alzheimer’s disease.

People of 80+ years show exceptional memory is at least as good as individuals 20 to 30 years their junior.

Scientists studied the entorhinal cortex of the brain

As it is the first location targeted by Alzheimer’s disease

Six layers of neurons packed on top of one another comprise the entorhinal cortex

A neuron spared from tangle formation can maintain its structural integrity

Tau tangles can lead to neuronal shrinkage this is also true.