Good night's sleep good for brain

March 9, 2011 4:36:53 AM PST
A new study in Current Biology finds the brain's learning ability seems to recharge during light sleep.

Scientists say a bursts of brain waves called sleep spindles may network between important regions of the brain to clear a path to learning.

They say this spindle driven networking is most likely to occur during stage 2 of non-REM sleep. That tends to happen before the deepest sleep.

Scientists say stage 2 non-REM sleep can account for half of a person's sleep and usually occurs in the second half of the night. That's why sleeping six hours or less may be short-changing yourself.

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