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Study: Brain may take naps when tired

April 28, 2011 12:00:00 AM PDT
If you often find yourself forgetting where you put your keys or glasses, you may want to get a little extra sleep.

Scientists say it's possible the brain may actually fall asleep for a split second, even though it feels like you're awake.

After conducting a study on rats, scientists found when exhausted, parts of the brain could fall asleep for as short as a third of a second, while other parts remained active.

Researchers say the results have far-reaching implications, especially for people who work at jobs where lack of sleep could be dangerous.