Disruption of deep sleep, which occurs more during the first part of the night, is linked to memory problems and the build-up of proteins in the brain that are linked to dementia.
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Author: Dr Jeremy Dean
Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology. He has been writing about scientific research on PsyBlog since 2004. View all posts by Dr Jeremy Dean