Tuesday April 14, 2009
Revealed: why we need a good night's sleep
Steve Connor
Independent
Scientists warn of the dangers of sleepless nights after discovering how brain clears out day's mental rubbish
To sleep, perchance to dream, said Hamlet. Now scientists have shown that sleep is more about getting rid of the previous day's mental rubbish than it is about dreaming.
A study into slumber has found that the nerve connections built up in the brain during a busy day are pruned back during the night in an attempt to keep the mind from overloading on junk information.
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