Cultures with siestas have the right idea
A mid-day nap improves learning.
That, at least, is the eye-opening implication of a new study in which college students were challenged to detect subtle changes in an image during four different test sessions on the same day.
[...] The scores of the participants who didn't nap declined throughout the final two sessions. In contrast, volunteers who took a 30-minute nap after completing the second practice session showed no ensuing performance dips. What's more, 1-hour nappers responded progressively faster and more accurately in the third and fourth sessions.
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