A study by researchers Sara Mednick, Denise Cai, Jennifer Kanady, and Sean Drummond published in Behavioural Brain Research (2008) found that naps are better than caffeine for improving verbal memory, motor skills, and perceptual learning.
Many people avoid napping during the day to not interfere with a good night’s sleep. “Why should I sleep now,” they might ask, “if it’s only going to make me toss and turn in bed tonight?” Actually, naps can be helpful in recovering from sleep deprivation, refreshing your energy supply, and reducing stress. Naps can do more harm than good, however, when taken at the wrong time or for the wrong amount of time.
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