You’ve heard the old advice that skipping meals is a sure-fire way to ruin a weight loss plan, but a new study presented this week at the annual Obesity Society Meeting in New Orleans suggests that perhaps we've overlooked the benefits of selective fasting. According to the research, eating during a smaller window of time each day and skipping your evening meal could have a positive health effect.
The study concluded that overweight individuals who ate during the day and fasted during the evening reported fewer hunger swings and burned more fat at night, WebMD reported. However, although this diet plan results in more fat burned in the evenings, it did not seem to increase fat burning overall. Due to this, at this moment it’s still unclear as to how this eating schedule can affect general weight loss.
“At this point, we are not sure whether or not total fat burning is increased,” study lead author Courtney Peterson told Medical Daily in a recent email. “We will need to do a larger study to find out for certain whether or not time-restricted feeding improves fat burning.”
Still, although the results do not indicate a clear association between nighttime fasting and weight loss, they are still important for the world of nutrition. For example, Peterson told Medical Daily that she was surprised to find that participants did not report being hungrier than average, or have above-average swings in hunger levels, despite fasting daily for 18 hours.
“So we overturned the belief that fasting for longer period each day when the same number of total calories are eaten makes a person hungrier,”wrote Peterson.
While the effects of fasting and time-restricted feeding have been studied and proven to work in a rodent(贴齿动物)model，research on human subjects is still in its early stages. For this reason，Peterson explained that it is far too early to say，with factual evidence as backing，that time-restricted feeding will improve weight loss in humans. Still，Peterson explained that practicing this eating behavior does have obvious benefits，such as reducing overall food intake，and suggested that practicing time restricted eating a few times a week could be both practicable and healthy.
“It could be used for short-term goals or longer-term goals，"concluded Peterson." As far as we know，it is safe for adults，although pregnant women and children should not try it.”
【小题1】The underlined word in Paragraph l may mean ________.| A．skip meals | B．eat food in a hurry | C．eat less | D．be particular about food |
| A．The benefits of fasting | B．A sure-way weight loss plan |
| C．A seemingly practicable weight-loss plan | D．The pros and cons of fasting |
| A．Critical. | B．Disapproving. | C．Enthusiastic. | D．Objective. |
A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. And it may not be that their parents have failed to enforce (确保) bedtime. Instead, it may be that biologically these sleepyhead students aren’t used to the early hour.
“Maybe these kids are being asked to rise at the wrong time for their bodies,” says Mary Carskadon, a professor looking at problem of adolescent (青春期的) sleep at Brown’s School of Medicine.
Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level. she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns.
Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought.
Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at nigh and sleep later in the morning. But it’s not just a matter of choice—their bodies are going through a change of sleep patters.
All of this makes the transfer from middle school to high school—which may start one hour earlier in the morning—all the more difficult , Carskadon says. With their increased need for sleep and their biological clocks set on the “sleep late, rise late” pattern, adolescent are up against difficulties when it comes to trying to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body’s way of saying. “I need a timeout.”
【小题1】Carskadon suggests that high schools should not start classes so early in the morning because ________.
| A．it is really tough for parents to enforce bedtime |
| B．it is biologically difficult for students to rise early |
| C．students work so late at night that they can’t get up early |
| D．students are so lazy that they don’t like to go to school early |
| A．turn around | B．agree with others | C．fall asleep | D．refuse to work |
| A．Adolescents depend more on their parents. |
| B．Adolescents have to choose their sleep patterns. |
| C．Adolescents sleep better than they did at childhood. |
| D．Adolescents need more sleep than they used to. |
| A．Adolescent health care. | B．Problems in adolescent learning. |
| C．Adolescent sleep difficulties. | D．Changes in adolescent sleep needs and patterns. |
A new study suggests that the more teenagers watch television, the more likely they are to develop depression (忧郁) as young adults.
The researchers used a national long-term survey of adolescent health to survey the relationship between media (媒体) use and depression. They based their findings on more than 4,000 adolescents who were not depressed when the survey began.
As part of the survey, the young people were asked how many hours of television or videos they watched daily. They were also asked how often they played computer games and listened to the radio. Media use totaled an average of five and one-half hours a day. More than two hours of that was spent watching TV.
Seven years later, more than seven percent of the young people had signs of depression. The average age at that time was twenty-one. The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio, etc. But the study did find that every extra hour of television meant an eight percent increase in the chances of developing signs of depression. Young men were more likely than young women to develop depression given the same amount of media use.
Last December, a popular magazine published a study of activities that help lead to happy lives. Researchers from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to be socially active, to join in outdoor activities and to hang out with friends.
【小题1】We can learn from the survey that ______.
| A．computer games are teenagers’ favorite |
| B．teenagers enjoy watching TV very much |
| C．newspaper is not included in the survey |
| D．most teenagers prefer to listen to the radio |
| A．Movies and video games may cause depression. |
| B．Less than 7% of the young people became depressed. |
| C．An increase in television watching raises the risk of depression. |
| D．Young women had higher chances of becoming depressed than young men. |
| A．Teenagers should not watch television any longer. |
| B．Teenagers play more video games instead of watching TV. |
| C．Teenagers should be active in taking part in outdoor activities. |
| D．Teenagers should be more active in reading magazines and newspapers. |
Travel is fun and exciting, but it’s not if you get sick. You may think, “Not me, I won’t get sick on my vacation.” But for many people, that is what happens.
A vacation is supposed to be a time for relaxing. But very often it is not. “What can I do when I am a tourist?” This is what we should often think about. Usually there are so many places to visit: museums, shops, parks and churches. You may spend most days walking around these places. This can be very tiring. Your feet may hurt. And you may have a terrible headache after a few hours. If this is what you feel, you should take a rest. Don’t ask your body to do too much. A tired body means a weak body. And a weak body can make you get sick easily. Just sit down for a few hours in a nice spot. In good weather, look for a quiet park bench. Or you can rest at a café. You can learn a lot by watching people when you have a rest.
Sleep is also important. If you want to stay healthy you need enough sleep. You may have trouble sleeping at night when you travel. Your hotel room may be noisy, or the bed may be uncomfortable. If that is true, don’t be afraid to change rooms or hotels. You may not get enough sleep for another reason. You may want to stay out late at night. In many cities the night life can be very exciting. Then you should plan to sleep for an hour during the day. That extra hour can make a big difference.
Finally, if you want to stay healthy, you must eat well. That means eating the right kinds of foods. Your body needs fresh fruit and vegetables, and some meat, milk or cheese. When you are in a new country you may want to try new foods but you need to be careful about how much you eat. Lots of rich food is not very good for you.
【小题1】Travelling around can be ________.| A．the best way to relax | B．unhealthy |
| C．never any fun | D．very tiring |
| A．spend every night in hotels | B．change hotels |
| C．get some rest every day | D．take lots of medicine |
| A．watching them | B．visiting their homes |
| C．writing to them | D．going to the shops |
| A．enjoy the night life of the city | B．eat more rich food |
| C．sleep for an hour during the day | D．go for a holiday |
| A．Try not to visit every museum and church in a place. |
| B．Eat proper food, have enough sleep and rest. |
| C．Stay up late every night and sleep for an hour in the day. |
| D．Visit as many shops as you can. |
组卷网是一个信息分享及获取的平台，不能确保所有知识产权权属清晰，如您发现相关试题侵犯您的合法权益，请联系组卷网
