Differences in brain shape between a present-day human (left, in blue) and a Neanderthal from La Chapelle-aux-Saints (right, in red). Source: Max Planck Institute for Evolutionary Anthropology/Simon ...

These findings provide some evidence that reduced slow wave sleep (SWS) and rapid eye movement sleep (REM) may contribute to brain atrophy, thereby increasing the risk of Alzheimer disease (AD).

There is a deeper side to the brain which weaves your memories, goals, beliefs and emotions into a continuous sense of self.

The human brain, as the seat of mental life—from the most complicated intellectual processes down to routine and unconscious bodily control—is necessarily enormously complex. The largest part of the ...