Why do we sleep?

Brian T. Greuel greuelb1 at jaguar.uofs.edu
Thu Feb 17 14:28:50 EST 1994

In article <1994Feb17.150343.25105 at Virginia.EDU>, mgk2r at Virginia.EDU (Michael 
G. Kurilla) responded to the following question by 
hcorbett at garnet.berkeley.edu:

> > Why can people usually only sleep withtheir eyes closed? 
Michael's response was, "Light stimulation."

I would like to ask a related question that I have often wondered about:

Why do we sleep?  Is there something that builds up in our bodies that gives 
us a feeling of fatigue and that during sleep gets metabolized somehow so 
that we feel refreshed upon waking?

Just curious.

Brian Greuel
University of Scranton
greuelb1 at jaguar.uofs.edu

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