请认真阅读下文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意：每空仅限1个单词。Celebrating sleepWorld Sleep Day, observed

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Celebrating sleep
World Sleep Day, observed on 21 March, was created to bring attention to the growing number of sleep problems worldwide. Sleep is a natural part of human life, but many people in the modern world ignore its importance. As a result, sleep problems are increasingly mon.
In 2002, scientists at the University of Athens in Greece conducted a survey of over 35,000 people in 10 countries around the world, including China, Belgium and South Africa. Of the people that responded to the survey, 24 percent said that they did not sleep well, and based on their responses, 31.6 percent were diagnosed（诊断） with insomnia(失眠)  and another 17.5 percent were diagnosed with borderline (临界状态)insomnia. In addition, 30.7 percent of survey respondents reported visiting a doctor for help with sleep problems and 11.6 per cent said that they felt very sleepy during the day.
Overall, the survey found that many people suffer the effects of poor quality sleep, some examples of which are being unable to fall asleep and waking up in the middle of the night. The main factors causing these problems are pressure from school or work and a fast pace of life, but noise pollution and light pollution also relate to sleep and contribute to poor quality sleep. The survey’s findings are particularly troubling because large numbers of people were found to have difficulty sleeping at night. The short-term effects of this are tiredness and trouble concentrating. If this happens for a long time, the risk of gaining weight and having a heart attack may increase.
There are many things you can do to improve the quality of your sleep. First, you should have regular sleep habits. Try to go to bed and wake up around the same time each day. You also need to make your bedroom a cool, dark, quiet place to sleep so that heat, light and noise do not disturb you. At night, you should also avoid things that contain caffeine, such as chocolate, coffee, tea and many soft drinks, as caffeine may keep you from sleeping.
Getting a good night’s sleep is important for everyone. By following the advice above, you can rest better at night and work better during the day.
Title: Celebrating Sleep
Topic
Context
World Sleep Day
Due to ignorance of sleep problems, people observed Mar. 21, World Sleep Day,     73    attention to the importance of sleep.
Responses of the survey
Of 3, 5000 people in 10 countries in the world, there were 24 percent of the people saying they didn’t sleep well.
31.6 percent were diagnosed with insomnia and another 17.5 percent were on the     74     of sleeplessness.
The percentage of the people feeling     75     during the day is 11.6.
In additio  30.7 percent reported    76     to a doctor for sleep problems.
    71    causing sleep problems and their consequences
Under _77     from school or work, people may have sleep problems.
A fast pace of life causes sleep problem as well.
Noise and light pollution also     78     to poor quality sleeps.
Sleepless people are more     79     to gain weight and have a heart attack.
Feeling tired and sleepy, people find it hard to     80    
    72     to take to improve sleep quality
Have regular sleep habits
Make your bedroom cool, dark and quiet
Avoid things containing caffeine
Factors                76、turning