Even naps are beneficial, according to a Harvard study in which subjects who took a 90-minute snooze after learning a task performed 50 percent better over a 24-hour period than the napless group.

根据哈佛大学一项研究表明，即便是打个盹也会对记忆有帮助。者学习打盹90分们在24小时内要比那些没有打盹群表现更好。

They found that the students who had a nap did better in a test of cognitive function than their napless counterparts.

他们发现，在认知功能试中，睡午觉学生试结果好于没睡午觉。