Scientists have long known that sleep is important for good health, but its role in learning has only recently become clear. During de sleep, t brain react the sa patterns o activity th occurred wh a per was lear something n. This repetition seems to strengthen the connections between brain cells, making new memories more stable. In one well-known study, students who slept after practicing a task performed better the next day than students who stayed awake for the same amount of time. Such findings suggest that sleep is an active part of the learning process.

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