—DR．MARJORIE SEIDENFELD ANSWERS YOUR HEALTH QUESTIONS

—I have such a terrible time falling asleep every night that I'm always tired and it's affecting（影响） my schoolwork．What should I do?

—Mindy in Nevada

One in every five young people has a sleep problem，so you're not alone．Getting enough sleep has become as important as eating vegetables and exercising regularly．It's very important for your body．

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

What happens if you don't get enough sleep? If your sleep problem continues for a few nights，you could suffer serious problems．Lack of sleep can affect learning and memory．Worse， if your sleep difficulties last a long time ，that could lead to anxiety or depression（抑郁）．

Therefore，you've got to have some healthy sleep habits．Below are some suggestions：

●GO TO BED AT THE SAME TIME—including weekends，if possible．

●WAKE UP AROUND THE SAME TIME EVERY MORNING．When you sleep late just one morning during the week， it may disturb your body clock．This will make it hard for you to sleep that night．

●DO SOMETHING RELAXING before going to bed．

●EXERCISE DURING THE DAY．Don't exercise right before going to bed．

●AVOID DRINKING ALCOHOL．Alcohol makes you excited．This prevents you from falling asleep or wakes you up during the night．

●DON'T SMOKE．Smoking is always bad for the body．Smoking before bedtime keeps you awake．

If trying these tips over a couple of weeks does not help you，speak to your doctor．Do not take any sleeping pills without first asking your doctor．Many have strong side effects．

1．According to the passage，if you have sleep problems for a few nights，you could be________．

A．lonely

B．serious

C．forgetful

D．depressed

2．The passage suggests that people with sleep problems should________．

A．eat vegetables and exercise regularly

B．make up for lost sleep on weekends

C．follow a fixed timetable for sleep

D．sleep seven hours every day

3．We can learn from the suggestions that________．

A．getting up earlier one morning makes it easier to fall asleep that night

B．listening to soft music before going to bed may help you fall asleep

C．smokers and those who drink alcohol usually have sleep problems

D．exercising in the evening will help you get to sleep

4．According to the passage，it is clear that________．

A．you'll no longer have your sleep problem if you try the tips

B．sleeping late on weekends can make up for lost sleep

C．your eating habits will be broken due to lack of sleep

D．sleep problems are serious among young people

Researchers at Massachusetts General Hospital for Children (MGHfC) have invented a new term that describes dangers associated with cigarette smoke: third-hand smoke. Study results published in January, 2009 discuss how third-hand smoke is especially dangerous for children.
Have you ever walked into a room that had the smell of cigarette smoke, regardless of the fact that a fan was moving the air and no one was smoking at the time? This is what researchers are calling third-hand smoke — and it represents the poisonous deposits (存积物) that are left behind long after a cigarette is put out. 
Cigarette smoke contains gases and small particles that are deposited on every surface it comes in contact with, for example, the smoker’s hair and clothing, or the environment the cigarette was smoked in. It’s dangerous for young children who may crawl on polluted surfaces. Third-hand smoke is a serious health risk for our kids, especially those who live in the homes of smokers.
Jonathan Winickoff, lead author of the study, explains, “When you come into contact with your baby, even if you’re not smoking at the time, he or she comes in contact with those poisons. And if you breast-feed, the poisons will transfer to your baby in your breast milk.” Winickoff adds however, that nursing a baby if you’re a smoker is still a better choice than bottle-feeding.
Researchers involved in the study also surveyed more than 1,500 families in an effort to learn about adult attitudes regarding the danger third-hand smoke represents to their children and how that might affect smoking in the home.
Approximately 95 percent of nonsmokers and 84 percent of smokers believe that secondhand smoke is dangerous for children.
On the issue of whether third-hand smoke threatens the health of children, 65 percent of nonsmokers and 43 percent of smokers felt that third-hand smoke harms kids. When asked about rules regarding smoking in the home, approximately 88 percent of nonsmokers said they don’t allow smoking, while only 27 percent of smokers forbid smoking in the home.
However, both non-smokers and smokers who felt that third-hand smoking was harmful to children’s health were more inclined to (倾向于) restrict smoking in their homes.
【小题1】The study led by Jonathan Winickoff focused on _______.

Researchers at Massachusetts General Hospital for Children (MGHfC) have invented a new term that describes dangers associated with cigarette smoke: third-hand smoke. Study results published in January, 2009 discuss how third-hand smoke is especially dangerous for children.

Have you ever walked into a room that had the smell of cigarette smoke, regardless of the fact that a fan was moving the air and no one was smoking at the time? This is what researchers are calling third-hand smoke — and it represents the poisonous deposits (存积物) that are left behind long after a cigarette is put out. 

Cigarette smoke contains gases and small particles that are deposited on every surface it comes in contact with, for example, the smoker’s hair and clothing, or the environment the cigarette was smoked in. It’s dangerous for young children who may crawl on polluted surfaces. Third-hand smoke is a serious health risk for our kids, especially those who live in the homes of smokers.

Jonathan Winickoff, lead author of the study, explains, “When you come into contact with your baby, even if you’re not smoking at the time, he or she comes in contact with those poisons. And if you breast-feed, the poisons will transfer to your baby in your breast milk.” Winickoff adds however, that nursing a baby if you’re a smoker is still a better choice than bottle-feeding.

Researchers involved in the study also surveyed more than 1,500 families in an effort to learn about adult attitudes regarding the danger third-hand smoke represents to their children and how that might affect smoking in the home.

Approximately 95 percent of nonsmokers and 84 percent of smokers believe that secondhand smoke is dangerous for children.

On the issue of whether third-hand smoke threatens the health of children, 65 percent of nonsmokers and 43 percent of smokers felt that third-hand smoke harms kids. When asked about rules regarding smoking in the home, approximately 88 percent of nonsmokers said they don’t allow smoking, while only 27 percent of smokers forbid smoking in the home.

However, both non-smokers and smokers who felt that third-hand smoking was harmful to children’s health were more inclined to (倾向于) restrict smoking in their homes.

1.The study led by Jonathan Winickoff focused on _______.

2.How does the text explain what third-hand smoke is?

3.The following measures to prevent the effect of third-hand smoke are effective except _______.