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Why Is Sleep Important?
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The sleeping brain visualized by positron emission tomography A diagram of EEG tracings displays brain wave patterns for wakefulness and three sleep stages, highlighting features like theta waves, sleep spindles, K-complexes, and slow waves.
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The sleeping brain visualized by positron emission tomography
Metabolic activity in the brain while awake and during sleep can be tracked according...
© Hank Morgan/Science Source
Electroencephalogram
An electroencephalogram (EEG) showing typical brain waves of sleep and wakefulness.
Encyclopædia Britannica, Inc.