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Sleep

What happens in the brain when we close our eyes?

Weizmann Institute
February 5, 2009
37 תגובות

This is how whales sleep

Galileo - The Science Magazine
May 7, 2008
6 תגובות

Melatonin is only effective outside of regular sleeping hours

First science
May 2, 2006
One response

While the enemy will waste time sleeping

Uriel Brizon
January 4, 2003
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