The Purpose of Sleeping

There must be a purpose, or evolution really blundered.

Direct Quote:

If sleeping and dreaming do not perform vital biological functions, then they must represent nature's most stupid blunder and most colossal waste of time.

Folksonomies: evolution sleep

 Evolutionary psychiatry
Books, Brochures, and Chapters>Book:  Stevens , Anthony and Price , John (2000), Evolutionary psychiatry, Psychology Press, Retrieved on 2012-06-23
  • Source Material [books.google.com]
  • Folksonomies: psychology