Here are some helpful hints from Dr. Sara Mednick, author of Take a Nap! Change Your Life.

Sara Mednick博士，也是“睡个午觉！改变生活”一文的作者，给出了以下几条有用的提示。

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A power nap, says Mednick, simply maximizes these benefits by getting the sleeper into and out of rejuvenating sleep as fast as possible.

如果你得到充足睡眠的话，肯定能跑得更快更有成效，也更有精气神儿。 所以，何不利用打盹来储备精力呢，这不仅免费便捷还很管用！

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Sara Mednick, from the University of California, San Diego, suggests that non-habitual nappers suffer from this more often than those who siesta regularly.

位于圣迭戈的加利福尼亚大学的萨拉·麦德尼克说，没有午睡习惯的人和有规律午睡的人比起来更容易发生这种情形。

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In a landmark 1984 study, my colleague Sarnoff Mednick found that children in Denmark who had been adopted from parents with a criminal record were more likely to become criminals in adulthood than were other adopted kids.

WSJ: Neurocriminology: Inside the Criminal Mind