From: here@is.invalid   
      
   Sleep deprived brains clean themselves while awake   
      
   Anyone who has ever struggled through the day following a poor night's   
   sleep has had to wrench their attention back to the task at hand after   
   their mind drifted off unexpectedly.   
      
   Now, researchers have pinpointed exactly what causes these momentary   
   failures of attention.   
      
   The new study in Nature Neuroscience found that the brains of   
   sleep-deprived people initiate waves of cerebrospinal fluid (CSF), the   
   liquid which cushions the brain, which dramatically impaired   
   attention.   
      
   This process usually happens during sleep. The rhythmic flow of CSF   
   into and out of the brain carries away protein waste which has built   
   up over the course of the day.   
      
   When this is maintenance interrupted due to lack of sleep, it seems   
   the brain attempts to play catch up during its waking hours.   
   ...   
   ...   
   Predictably, sleep-deprived participants performed much worse on these   
   tasks, with slower response times and, at times, a complete failure to   
   register any change happening at all.   
      
   https://connectsci.au/news/news-parent/6974/Sleep-deprived-brain   
   -clean-themselves-while-awake   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)