Sleep deprivation hits some brain areas hard

Some regions resist drowsiness, while others falter without slumber

sleep-deprived people

SLUGGISH  Brain regions involved with problem solving are especially slow to respond when sleep-deprived, a new study shows.

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Pulling consecutive all-nighters makes some brain areas groggier than others. Regions involved with problem solving and concentration become especially sluggish when sleep-deprived, a new study using brain scans reveals.