ALZHEIMER'S DISEASE ANNIHILATES THE BRAIN CELLS THAT KEEP US AWAKE, SCIENTISTS BELIEVE

Alzheimer's disease annihilates a network of brain cells which keep us awake, according to scientists who investigated why some people feel sleepy during the day years before they are diagnosed with the condition.

The build-up of tau protein is thought to stop brain regions which help to control awakeness from working, the authors of the study published in the journal Alzheimer's and Dementia said. However, amyloid protein, which is also associated with the neurocognitive disorder, didn't appear to play a role.

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