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All of us, at some point, experience nights where we have difficulty falling asleep or staying asleep. The National Institute of Health estimates that one in three adults has bouts of infrequent sleeplessness or insomnia, while one in 10 sufferes from chronic insomnia. Being unable to get a good night's sleep can cause disruptions in our day­to­day life. But persistent sleeplessness can lead to physical and emotional health problems.
The body needs sleep to rejuvenate itself and rebuild the cells necessary to keep the immune system strong and the brain functioning properly.  Everyone's  body  requires a  different  amount  of sleep  to accomplish these goals. The average amount of sleep needed by an adult is around seven or eight hours a night.  However,  some people can function quite well with less than that, while others need more to be at peak performance.
Sleeplessness can be caused by many different things. Most people experience sleeplessness for a short period of time due to an outside stimulus such as stress, improper diet, a poor sleeping environment or an acute medical concern such as the flu. Once the stimulus passes, the ability to sleep will usually return. Chronic sleeplessness may be caused by ongoing health concerns such as the physical pain of arthritis or the emotional pain of anxiety and depression.
Prolonged sleeplessness can have a negative effect on the way the body performs daily tasks. Those that suffer from sleepless nights may find themselves feeling drowsy or fatigued during the day.  The ability to concentrate or focus on a task diminishes and you are less mentally alert. Because the body needs sleep to support a healthy immune system, those that are sleep­deprived may be more susceptible to both acute and chronic illnesses such as high blood pressure and diabetes.
Sleeplessness not only takes a toll on your physical self but also your emotional well­being. Being unable to sleep well for a few nights may only produce minor irritability. However, if sleeplessness becomes chronic, the price could be much higher in the form of anxiety, depression and possibly substance abuse. Those with chronic sleeplessness may turn to controlled substances such as sleeping pills and alcohol to aid them in their quest for a good night's sleep.
There are numerous home remedies for mild sleeplessness. Prepare your body for sleep by avoiding caffeinated drinks such as tea or coffee before bed.  Don't  exercise  strenuously  before  bedtime;  instead do something relaxing such as meditate or take a warm bath. Go to bed only when you feel sleepy and not because of a self­appointed bedtime.Finally, create a favorable sleeping environment by removing stimulants from your bedroom such as extra lighting or a television. If you still cannot find relief, it may be time to visit your physician for help. A sleep study will be done that can help to determine the cause of the sleeplessness and possible solutions.

小题1:different
小题2:strengthen
小题3:proper
小题4:average
小题5:causes
小题6:Physical
小题7:depressed
小题8:Solutions
小题9:relaxing
小题10:necessary/needed
在现代生活中,由于各种各样的原因,大多数人会遭受不同程度的失眠。本文为我们讲述了失眠会对我们造成的影响以及解决方法。
小题1:different [根据文章第一段的第二句“The National Institute of Health estimates that one in three adults has bouts of infrequent sleeplessness or insomnia, while one in 10 suffers from chronic insomnia.”可知,许多人遭受着不同程度的失眠。]
小题2:strengthen [根据文章第二段第一句中的“keep the immune system strong”可知答案。]
小题3:proper [根据文章第二段第一句中的“keep...the brain functioning properly”可知答案。]
小题4:average [根据第二段倒数第二句“The average amount of sleep needed by an adult is around seven or eight hours a night.”可知答案。]
小题5:causes [根据文章第三段以及右栏中的信息可知,此处表示导致失眠的因素。]
小题6:Physical [根据第五段第一句“Sleeplessness not only takes a toll on your physical self but also your emotional well­being.”以及右栏内容可知答案。]
小题7:depressed [根据第五段倒数第二句“However, if sleeplessness becomes chronic, the price could be much higher in the form of anxiety, depression and possibly substance abuse.”可知答案。]
小题8:Solutions [根据文章的最后一段以及右栏中的信息可知此处给我们提出了一些治疗失眠的办法。]
小题9:relaxing [根据文章最后一段第三句“Don't exercise strenuously before bedtime; instead do something relaxing such as meditate or take a warm bath.”可知答案。]
小题10:necessary/needed [根据文章最后一段的倒数第二句可以推知答案。必要(需要)的时候要看医生。
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