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By Rick Nauert PhD Senior News Editor
Reviewed by John M. Grohol, Psy.D. on August 21, 2009


It may be a surprise that an activity we perform for one third of our life is an endeavor that modern science has a hard time explaining.


The event spans taxonomical classifications as birds, amphibians and mammals perform what some may call a pastime or hobby.


Yet, in reality, the activity is vital for life. Naturally, the activity is sleep.


Background information in the journal Science portrays sleep as one of the 125 greatest unsolved mysteries in science.


According to the article, theories range from brain “maintenance” — including memory consolidation and pruning — to reversing damage from oxidative stress suffered while awake, to promoting longevity. Unfortunately, a definitive ‘answer’ does not exist.


Read Article in Full:  http://psychcentral.com/news/2009/08/21/sleep-a-common-science-mystery/7894.html


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