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Why do we sleep?

by ConcealedDreamer
Tags: sleep
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ConcealedDreamer
#1
Jan9-05, 07:23 PM
P: 22
Why do we sleep? Is it because our brain needs time to move and solve problems, and recharge energy to our organs? And is sleep sub consciencous (sp) or unconscience (sp)?
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franznietzsche
#2
Jan10-05, 12:14 AM
P: 1,783
Quote Quote by ConcealedDreamer
Why do we sleep? Is it because our brain needs time to move and solve problems, and recharge energy to our organs? And is sleep sub consciencous (sp) or unconscience (sp)?

I read some where that fatigue is caused by the bodies inability to acquire enough oxygen to keep everything running. This is what causes yawning, an attempt to get more oxygen. During sleep the bodies oxygen use goes down, while intake reamins about the same, essentially catching up.

Not sure if thats right, but i remember reading it.
Gokul43201
#3
Jan10-05, 01:12 AM
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From which it is easy to prove that caffeine is a good source of oxygen !

franznietzsche
#4
Jan10-05, 01:21 AM
P: 1,783
Why do we sleep?

Quote Quote by Gokul43201
From which it is easy to prove that caffeine is a good source of oxygen !

Hardy har har. But a caffeine high does not feel the same as being well rested.


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