It turns out our mothers were on to something when they told us to get to bed, and we would feel better in the morning.  Now there is the science to back that up.  And it may even have something to contribute to the Alzheimer’s field.

A paper published in Science this week provides direct experimental evidence that the mouse brain cleans itself during sleep, by expanding channels between neurons that allow an influx of cerebrospinal fluid. The fluid flushes out neurotoxic waste products, such as amyloid proteins, which accumulate as plaques in Alzheimer’s disease, twice as fast when mice are sleeping as when they are awake.

Promising news, especially in the field of Alzheimer’s research.  See the study article in the Journal Science.