Body & Brain

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a sleeping Australian dragon

CATCHING Z’S While sleeping, this Australian dragon (Pogona vitticeps) shows brain wave patterns similar to those of slumbering birds and mammals. 

a sleepy mouse

ION COCKTAIL Changing levels of certain ions in the brain may lull mice (and probably humans) to sleep and rouse them again, a new study suggests. 

brain map

ALL OVER THE MAP  The brain areas that respond to the meaning of words speckle much of the cerebral cortex, the wrinkly outer layer of the brain.

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