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Since exercise can reduce the risk of diseases, improve balance,help lose weight, better sleep habits and even make you confident, you can start a fitness program in the following steps.

既然锻炼可以降低患这种疾病的风险，促进平衡，有助于减重，形成更好的睡眠习惯，甚至令你更自信，那你下一步就可以开始锻炼。

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A new study found better results in four-year-olds who go to bed around the same time every night and sleep at least eleven hours.

VOA: special.2010.06.09

We banned that drug and I haven't heard anybody saying that that was a wrong decision, that we should allow pregnant women who want to sleep better to take a drug that will mean their children are born without limbs.

我们禁止了这种药物的使用，但我们从未听说,有人认为这是个错误的决定，也从未有人说，我们应该允许,失眠的孕妇使用这种药品,即使她们的孩子可能从出生就没有四肢。

普林斯顿公开课 - 人性课程节选

We'd better get some sleep.

我们最好先睡一会儿。

I'd better 实战 - SpeakingMax英语口语达人

For better sleep, don't just set a morning alarm -- set a bedtime for both the week and the weekend and keep to it.

CNN: Vital Signs health tips

Why rhythmic rocking leads to better sleep went beyond the scope of the study, though the authors have several ideas based on the recent literature.

FORBES: For the Best Naps, Use a Hammock

Conclusion: Clever parents get better sleep and smarter children.

FORBES: How To Make Your Baby Smarter