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8. ___________

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3. ___________

2. ___________

One in every five young people has 　1　sleep problem. 　2　(get)enough sleep has become as important　3　eating vegetables and exercising regularly. It’s very important for your body.

Most young people only get seven hours of sleep each night, 　4　 they actually need nine hours. And making up for lost sleep during the week by sleeping in on weekends doesn’t really work. 　5　fact, sleeping late on weekends may actually do you more harm 　6　good, if you have sleep problems.

What happens if you don’t get enough sleep? If your sleep problem　7　(continue) for a few nights, you could suffer serious problems. Lack　8　sleep can affect learning and memory. 　9　(bad), if your sleep difficulties last a long time, that could lead to anxiety or depression (抑郁). 　10　, you’ve got to have some healthy sleep habits.

1.___________