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The bad health effects of sleep loss during the week can’t be repaid by longer weekend sleep, according to a new study.
Researchers have long known that sleep deprivation (剥夺) can cause weight gain and increase other health risks. But for those who force themselves out of bed every weekday after too few hours of shut eye, they hope turning off the alarm on Saturday and Sunday will repay the weekly sleep debt and remove any ill effects.
The research, published in Current Biology, crushes those hopes. Despite complete freedom to sleep during a weekend recovery period, people in a sleep lab who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks and experienced disorders that would increase their risk for diabetes over the long term. While weekend recovery sleep had some benefits after a single week of sleep loss, those gains were wiped out when people fell right back into their same sleep deprived schedule the next Monday.
''If there are benefits of catch-up sleep, they're gone when you go back to your daily schedule. It's very short lived'', said Kenneth Wright, director of the sleep and chronobiology lab at the University of Colorado at Boulder. ''These health effects are long term. It's kind of like smoking once was-people would smoke and wouldn't see an immediate effect on their health, but people will say now that smoking is not a healthy lifestyle choice. I think sleep is in the early stage of where smoking used to be.''
Wright said that the study suggests people should put sleep in the first place cutting out the ''sleep stealers'' such as watching television shows or spending time on their phones. Even when people don't have a choice about losing sleep because of child-care responsibilities or job schedules, they should think about getting sleep in the same way they would get a healthy diet or exercise.
1.What does the underlined word ''rushes'' mean?
A.Ruins. B.Guarantees.
C.Deepens. D.Arouses.
2.What will Kenneth Wright agree with?
A.Smoking is more harmful than sleep loss.
B.Weekend recovery sleep has many benefits.
C.Smoking and sleep loss have the same bad effects.
D.It takes long for people to see the effects of sleep loss.
3.What does Kenneth Wright advise people to do?
A.Take regular exercise every day.
B.Reduce the screen time before sleep.
C.Watch some TV shows before bedtime.
D.Sleep as long as possible during weekdays.
4.What is the main purpose of this passage?
A.To share some unhappy experiences. B.To show some unknown facts.
C.To promote a healthy lifestyle. D.To introduce a new study.
高一英语阅读理解中等难度题查看答案及解析
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Daily overuse of media and technology has a bad effect on the health of all children and teenagers by making them more open to anxiety, and more at risk of future health problems.1. Many newer apps automatically show where the users are when they’re used. This can tell anyone out there exactly where to find the person using the app.
2.They are also upset about their kids spending time on Facebook accounts instead of getting down to their homework assignments, and are afraid of what can come out of their online connections.
3. One way is to make a “social media agreement” with your kids—a real contract they can sign. In it, they can agree to protect their own privacy, consider their reputation, and not give out personal information.4.
In turn, parents agree to respect teens’ privacy while making an effort to be part of the social media world. Parents also can help kids spend less time on the computer by putting limits on media use.5.Avoid laptops and smartphones in bedrooms, and set some rules on the use of technology. And don’t forget that setting a good example through your own virtual behavior can go a long way toward helping your kids use social media safely.
A. Trust their children more.
B. Keep computers in public areas in the house.
C. It’s important to be aware of what your kids are doing online.
D. Besides, they promise never to use technology to hurt anyone else.
E. Spending too much time on social media can make kids feel upset, too.
F. Kids also can face the possibility of meeting the wrong person lace to face.
G. Parents often say that kids would rather be online than hang around with them.
高一英语七选五困难题查看答案及解析
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Nothing can __________ for the loss of one’s health.
A. wrestle B. explore
C. compensate D. demonstrate
高一英语单项填空简单题查看答案及解析
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Enough sleep is important to health. The amount of sleep needed 1. (depend) on the age of the person and the conditions in 2. sleep takes place. The young may need more sleep than _3.old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this amount, 4. others may need more. Every person knows his own need. 5. is then a matter of good judgment to satisfy his need. Sleep should always be enough to make one bring back his 6. (strong) and get ready for a day’s work.
Fresh air is necessary to sound sleep. So it is not without reason for some people to think that it is practicable(切实可行的) to sleep 7. the open air. A bath at bedtime, 8. hot nor cool but of body temperature, may be 9._ (help) to sleep. Sleep producing drug(帮助睡眠的药物) should never be taken except when __10. (suggest) by a doctor.
高一英语语法填空中等难度题查看答案及解析
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Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions in which sleep tak
es place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this amount, but others may need more. Every person knows his own need. It is then a matter of good judgment(判断) to satisfy his need. Sleep should always be enough to make one bring back his strength and get ready for a day’s work.Fresh air is necessary to sound sleep. It is not without reason for some people to think that it is practicable to sleep in the open air. When one can keep himself warm, out-of-door sleeping probably gives the body its most complete relaxation(松弛).
Ability(能力) to sleep is largely a habit. The conditions referred to only lead to sleep. Out-of-door exercises, a good habit of regular hours and the avoidance(避免) of late eating and worry, which are largely within the control of any person, are all helpful to sound sleep.
A bath at bedtime, neither hot nor cool but of body temperature, may be helpful to sleep. Sleep-producing drug(药) should never b
e taken except when suggested by a doctor.1.We know from the passage is enough for the health of a pupil.
A. equal or more than eight hours B. seven hours or so
C. Eight hours or so D. Less than eight hours
2.If you want to have a good sleep, is helpful.
A. forming the habit of taking sleep-producing drug.
B. keeping good habits.
C. staying up late night.
D. eating something at bedtime.
3.The amount of sleep a person probably needs has something to do with .
A. his character B. his control C. his age D. his habit
4.Before going to bed, you’d better not .
A. take a bath B. do any housework
C. go out for relaxation D. think a lot
高一英语阅读理解中等难度题查看答案及解析
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Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.
A．of; at B．by; in C．of; on D．on; at
高一英语单项填空中等难度题查看答案及解析
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Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
A. of；onB. by；in C. of；at D. on；at
高一英语单项填空中等难度题查看答案及解析
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Researches are convinced ______ the positive effect of laughter ______ physical and mental health.
A．of; at B．by; in C．of; on D．at; on
高一英语单项填空简单题查看答案及解析
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Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
A. of; at B. by; in C. of; on D. on; at
高一英语单项填空中等难度题查看答案及解析
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__________ sleep every night is important for teenagers. _________, loss of sleep can make you feel tired, and even cause you to put on weight.
A. A good amount of; As a matter of fact B. A good number of; In truth
C. A large amount of; As matter of fact D. Plenty of; In a fact
高一英语单项填空中等难度题查看答案及解析
es place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this amount, but others may need more. Every person knows his own need. It is then a matter of good judgment(判断) to satisfy his need. Sleep should always be enough to make one bring back his strength and get ready for a day’s work.
e taken except when suggested by a doctor.