[62] Lack of Sleep

  •  
  • 232
  • 0
  • 1
  • English 
Mar 6, 2013 16:28 exlang-correctionplea
Would you mind correcting this short essay?
I'd appreciate your support.

--//--//--//--//--//--//--//--

Today the problem of the lack of sleep is too serious to overlook. One reason is that it is taken for granted in our society that many people stay wake late at night. The development of lighting apparatus perhaps causes our body clock not to work properly. On the other hand, the time most schools and offices start hasn't changed. Thus we easily sleep less, which weakens our ability to concentrate.