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> A theory about sleep..., Why we sleep
post Nov 30, 2007, 04:44 AM
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Is it possible that the process of sleeping is just a period of time where the blood flows from our body to our brain...sort of like it's just a time period when oxygenated blood has a chance to flow to our brain because while we are moving around all day long blood is being pumped throughout the body and sleep is a chance for it to go to the brain.

If this is the case, then dreams would just be a byproduct of the oxygenation of nerve cells in the brain (producing the dream images we experience).

What do you guys think?

Any studies done on this?
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