Before you yawn, rub your eyes and hit the snooze button, consider the consequences of living in a nation of sleepheads.

在你打哈欠、揉眼睛、准备打盹之前，想一想生活在一个瞌睡虫遍地的国家是怎样的一个情况吧。

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When you are tired you yawn.

当你疲倦时就会打哈欠。

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Why do you yawn when you get sleepy?

你想睡觉时为什么会打哈欠？

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And even all the economists agree that most people will just do that and not spend it, There's a... -So you hear about the stimulus package and it neither enourages you nor outrages you You just shrug, and yawn and go on with your life. -Yea.

几乎所有的经济学家都一直认为,大部分人都会这么做，这个，-这么说这项一揽子刺激计划,并不引起你的兴趣,你只是耸耸肩，打个哈欠，事不关己的样子,生活该怎么过还是怎么过，-正是。

斯坦福公开课 - 经济学课程节选

So the next time you yawn, take a look around the boardroom and see who does the same.

FORBES: Watch Out When The CEO Yawns - And No One Yawns Back

How do you yawn in French?

CNN: Review: Con is on with 'The Swindle'

Yes, I hear you yawn.

BBC: What's the point of presidential speeches?