But there's something rather special about the way our brains look today: human skulls are rounder, faces are smaller, and more retracted into the skull ... rounded parietal lobe (which helps ...

Sleep deficiency is associated with atrophy of the inferior parietal region of the brain, according to a study published online.

As the skull is made of bone ... The main four areas are the four lobes (frontal, parietal, temporal and occipital). The frontal lobe is in charge of movement and impacts your personality.

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).