Biologists who studied the brains of so-called "superstars" found a set of enlarged neurons associated with memory, and they were also more resistant to Alzheimer's disease and represented a unique biological signature.
SuperAgers is a group of people over 80 years of age with an exceptional episodic memory, at least as good as people 20 to 30 years of age. Research into what separates the brains of these superstars from the typical brain of older people has led to exciting discoveries over the past few years, not only about memory, but also about how they contain neurological degeneration.
PET scans show that their brains have a smaller accumulation of toxic brain pebbles and balls associated with Alzheimer's disease, and MRI scans have shown that their neural network and connections are more appropriate to young people, and other studies of visual memory have shown, among other things, that their brain activity is similar to that of a 25-year-old.
A new study of scientists from Northwest University is based on this: Biologists have focused on the enthorinal cortex, the area of the brain responsible for memory. She is one of the first to suffer from Alzheimer's disease. Experts have studied six postmortem brains of superstars and found larger and healthier neurons in one of the six layers that make up this area. They have been compared to these in seven cognitive-red elderly people, six young subjects and five early-stage Alzheimer's.