Evaluating Sources of health Information
Making good choices about your own health requires reasonable evaluation. A key first step in bettering your evaluation ability is to look carefully at your sources of healthy information. Reasonable evaluation includes knowing where and how to fins relevant information, how to separate fact from opinions, how to recognize poor reasoning, and how to analyze information and the reliability of sources.
Go to the original source. Media reports often simplify the results of medical research. Find out for yourself what a study really reported, and determine whether it was based on good science. Think about the type of study.
Watch for misleading language. Some studies will find that a behaviour "contributes to" or is "associated with" an outcome; this does not mean that a certain course must lead to a certain result.
Use your common sense. If a report seems too good to be true, probably it is. Be especially careful of information contained in advertisements.
Developing the ability to evaluate reasonably and independently about the health problems will serve you well throughout your life.
A.Make choices that are right for you. |
B.The goal of an ad is to sell you something. |
C.Be sure to work through the critical questions. |
D.And examine the findings of the original research. |
E.Distinguish between research reports and public health advice. |
F.Be aware that information may also be incorrectly explained by an author’s point of view. |
G.The following suggestions can help you sort through the health information you receive from common sources. |
相似题推荐
【推荐1】Picking a career is one of the most important decisions you’ll ever make.
Carefully consider the following four factors when deciding on a career path.
Your personality
There are sixteen different personality types. Many career counselors use this to help determine which careers are best for an individual.
Your interests
Your values
Although many career tests focus on personalities and interests, values shouldn’t be ignored during the career planning process.
Your natural skills and abilities
If you struggle with math in school, you may want to consider a career that doesn’t require a great deal of math ability. However. Most degree programs include a variety of classes that may or may not relate to your future occupation.
A.Interests can predict your future success. |
B.Values can help you determine the right career. |
C.You can make an effort to overcome all difficulties. |
D.Each personality has its strengths and weaknesses. |
E.Some factors affect the right choice of your career. |
F.Interest matters when it comes to career satisfaction. |
G.Don’t let one difficult class discourage you for pursuing your dream career. |
【推荐2】Morning or night? Which time of day do you enjoy the most and are more mentally alert? Whichever one you prefer, there is a name for you.
Early birds or morning larks, as you can guess, are morning people. They have more energy in the morning and are happy to greet the day.
While all birds are created equal, some night owls wish they could rise earlier.
●People can’t adjust their bedtimes overnight. So for those night owls wishing to rise at dawn, start with a 15-minute change. Go to bed 15 minutes earlier than usual and wake up that much earlier as well. Keep the pattern going until you find yourself rising with the sun.
●Though it may be challenging, start your morning with as much light as possible.
●
For the night owls out there, hopefully these tips will make your mornings more bearable.
A.Open the curtains or turn on the lights. |
B.Night owls are the opposite of morning larks. |
C.Pick an hour to wake up, and do it every day. |
D.Because they rise early, they lose energy in the late afternoon. |
E.There are things that morning larks can do to act more like night owls. |
F.If you are one of them, here are some tips to help you catch that worm. |
G.Morning larks and night owls are people that find their energy at opposite times. |
【推荐3】If students followed a typical academic plan over the course of the year, it is precisely the opposite of what science recommends for lasting learning—one topic was probably limited to one week and another to the next. It is what it sounds like—leaving time between practice sessions for the same material. You might call it deliberate not-practicing between periods of deliberate practice. Space between practice sessions creates the hardness that improves learning.
Iowa State researchers read people lists of words, and then asked for each list to be recited back either right away, after fifteen seconds of practicing, or after fifteen seconds of doing very simple math problems that prevented practicing. The subjects who were allowed to reproduce the lists right after hearing them did the best. Those who had fifteen seconds to practice before reciting came in second. The group distracted with math problems finished last. Later, when everyone thought they were finished, they were all surprised with a sudden quiz: write down every word you can recall from the lists. Suddenly the worst group became the best.
Short-term practicing gave purely short-term benefits. Struggling to hold on to information and then recall it had helped the group distracted by math problems transfer the information from short-term to long-term memory. The group with more and immediate practicing opportunity recalled nearly nothing on the sudden quiz. Repetition, it turned out, was less important than struggle.
It isn’t bad to get an answer right while studying. Progress just should not happen too quickly. For a given amount of material, learning is most efficient in the long run when it is really inefficient in the short run. If you are doing too well when you test yourself, the simple solution is to wait longer before practicing the same material again, so that the test will be more difficult when you do. Frustration is not a sign that you are not learning,but ease is.
1. According to the science recommendation, to acquire lasting learning, we should ________.A.follow a typical academic plan |
B.limit the learning process within one week |
C.add not-practicing space between two learning sessions |
D.create more hardness |
A.Those who recited the lists right away. |
B.Those who had fifteen seconds of practicing. |
C.Those who finished the quiz last. |
D.Those who were distracted by math problems. |
A.Short- term memory is inefficient. |
B.Struggling is helpful to short-term memory. |
C.Making progress too quickly may not be a good sign. |
D.Getting frustrated means you are learning. |
A.research methods | B.learning strategies | C.math skills | D.academic plans |
【推荐1】All forms of tobacco — cigarettes, pipes, cigars, and smokeless tobacco — are dangerous. It doesn’t help to substitute products that seem like they’re better for you than regular cigarettes, such as filtered or low-tar cigarettes.
The only thing that really helps a person avoid the problems associated with smoking is staying smoke free. This isn’t always easy, especially if everyone around you is smoking and offering you cigarettes. It may help to have your reasons for not smoking ready for times you may feel the pressure, such as “I just don’t like it” or “I want to stay in shape for soccer (or football, basketball or other sport)”.
The good news for people who don’t smoke or who want to quit is that studies show that the number of teens who smoke has dropped evidently. Today, about 23% of high school students smoke.
If you do smoke and want to quit, you have lots of information and support available. Different approaches to quitting work for different people. For some, quitting cold turkey is best. Others find that a slower approach is the way to go. Some people find that it helps to go to a support group especially for teens. These are sometimes sponsored by local hospitals or organizations like the American Cancer Society. The Internet offers a number of good resources to help people quit smoking.
When quitting, it can be helpful to realize that the first few days are the hardest. So don’t give up. Some people find they have a few setbacks before they manage to quit for good.
Staying smoke free will give you a whole lot more of everything — more energy, better performance, better looks, more money in your pocket, and, in the long run, more life to live!
1. What will be the best title of the passage?A.Staying smoke free | B.Live a long life |
C.The smoking problems | D.The good news for smokers |
A.Sports activities. | B.Finding no reasons. |
C.Cigarettes offered around you. | D.The pressure from your work. |
A.Walking slowly. | B.Eating cold turkey. |
C.Staying in hospital. | D.Finding a suitable approach. |
A.have no cancer | B.be more attractive |
C.run for a long time | D.get more opportunities |
After tracking more than 20,000 people aged 45-79 years in the United Kingdom from about 1993-2007, Kay-Tee, Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived an average of 14 years longer than those who didn’t.
“We’ve known for a long time that these behaviors are good things to do, but we’ve not seen this benefit before, ” said Susan Jebb, head of Nutrition and Health at Britain’s Medical Research Council. “The benefit was also seen regardless of whether or not people were fat and what social class they came from.”
Study participants(参与者)scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake.
Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes.But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years.
“We can't say that any person could gain 14 years by doing these things, ”said Dr.Tim Armstrong, a physical activity expert at the World Health Organization.“The 14 years is an average across the population of what's theoretically(理论上地)possible.”
“Most people know that things like a good diet matter and that smoking isn't good for them, ”Susan Jebb said.“We need to work on providing people with much more practical support to help them change.”
1. Which of the following DOESN'T belong to the four healthy habits?
A.Eat five servings of fruits and vegetables a day. |
B.Do proper exercise in the morning every day. |
C.Drinking alcohol in the proper amount every day. |
D.Having a cigarette before going to bed every day. |
A.Susan Jebb did not take part in the study. |
B.the study observed people as well as tested specific changes. |
C.there's no need for people under 45 to adopt these good habits. |
D.only those from first class can benefit from these healthy behaviors. |
A.All the people are well aware of the harm of their bad habits. |
B.People aged 45 to 70 have bad habits in the United Kingdom. |
C.Governments should take measures to help people change their bad habits. |
D.People have adopted the four healthy habits after knowing they're good. |
A.Smoking and Drinking Cuts You 14 Years |
B.How to Live a Much Healthier Life |
C.Healthy Habits May Give Extra 14 Years |
D.How to Make Your Life Longer Than Others |
【推荐3】The sales advertisements tempt (诱惑): Blue-light-blocking glasses are supposed to protect eyes from the effects of short-wave length light emitting from our smartphones, computer screens and LED lights. Given how much time we spend on our devices, this sounds like a smart investment, right? After all, eye strain (疲劳) is a real issue and can lead to poor sleep and even eye diseases. The glasses can cost $15 all the way up to several hundred dollars. But do they work?
Elizabeth Esparaz, an ophthalmologist (眼科专家) based in Cleveland, Ohio, says the science that manufacturers share as they promote these glasses can be confusing. For starters, blue light is not just about tech devices, and it’s not always bad. “The sun emits a much higher intensity of blue light than human-made devices, which helps our mood, alertness and sleep-wake cycle,” says Dr. Esparaz.
The problem is blue light at night: It contains the release of melatonin. “Melatonin helps regulate our circadian rhythms (生理节奏) and makes us sleepy,” says Dr. Esparaz.
So, in theory, wearing blue-light-blocking glasses should help people who watch movies in bed or read from a tablet at night avoid sleeplessness. A review study from the University of Oklahoma that looked al 24 previous studies found that people affected by sleep disorders, jet lag and shift work fell asleep faster after using these glasses.
As for eye strain, a 2021 Australian study showed that those wearing the glasses did not experience less eye strain than those using clear glasses. And a 2018 review study, also by Australian researchers found insufficient evidence that they prevent certain eye diseases.
“These glasses aren’t going to be harmful,” says Dr. Esparaz, But, she adds, a lack of standardization in the industry means there’s no way to know if one pair is better than another. A more reliable solution: Turn on the blue-light-filtering function on your devices and limit screen time before bed. To help with eye strain, Dr. Esparaz suggests taking breaks and using lubricating eye drops.
1. What is Dr. Esparaz’s attitude toward business publicity?A.Unclear. | B.Tolerant. | C.Approving. | D.Doubtful. |
A.It can be beneficial. | B.It may improve sleep. |
C.It actually causes health issues. | D.It merely comes from digital devices. |
A.helps prevent eye disease | B.are not harmful to eyesight |
C.contributes to no less eye strain | D.benefits those with sleep disorders |
A.Blue-light-blocking Glasses: Your Best Choice | B.Blue-light-blocking Glasses: Good or Bad |
C.Blue-light-blocking Glasses: A Good Business | D.Blue-light-blocking Glasses: Smart and Cool |
【推荐1】Sleep's Effect on the Brain's Performance
When you have a busy schedule, it can be easy to neglect your sleep because of the different items you want to get done on your checklist each day. Whether you stay up late responding to emails or cut your sleep short to exercise in the morning, lack of sleep can start to have a negative effect on the brain. Your sleep can affect your brain's performance in a few main ways.
When your brain doesn't have time to rest, it can slow down your ability to think quickly, as well as your reaction time. You may have difficulty trying to stay awake and become more alert, which can affect how well you make decisions. You may find yourself taking more risks than normal.
Studies also show that memory and sleep are closely linked, which means it can be difficult to recall certain details or facts if you fail to get at least seven hours of sleep each night. NREM (Non-Rapid-Eye-Movement Sleep) and REM (rapid eye movement) sleep are necessary for remembering basic facts to improve your efficiency and ability to perform different tasks. In particular, fragmented sleep can affect the memory even if you get seven to eight hours of sleep each night.
Those who are easy to suffer from migraines (偏头痛) are at a higher risk of developing a headache if they don't get consistent, quality sleep. Studies show sleep loss also increases the risk of diabetes. It affects the body's ability to release insulin, resulting in higher blood sugar levels. Your body also has more difficulty determining when it's full while eating, which can make it easy to consume more calories than you need throughout the day.
There are many ways your sleep can affect the brain's performance and impact every area of your life. Scheduling your sleep and creating a restful, comfortable setting in the bedroom can make it easier to feel relaxed and recharged.
1. What is the function of the first paragraph?A.To stress what a busy life people live nowadays. |
B.To warn the readers of the importance of sleep. |
C.To show brain sometimes has poor performance. |
D.To introduce the theme of the whole passage. |
A.Your ability to drive safely will be influenced. |
B.You can realize your mistakes in a short time. |
C.Your ability to remember is likely to decline. |
D.You can't carry out a few tasks at the same time. |
A.Sound. | B.Broken. | C.Adequate. | D.Dreamless. |
A.Sleep loss leads to the decline of insulin. |
B.People fail to control the amount of intake. |
C.People don't know the calories they need. |
D.Sleep loss results in their poor appetite. |
【推荐2】Even before the Internet brought unlimited consumer options directly into our homes, choice had long been seen as the driving force of capitalism (资本主义). The possibility of consumers to choose between competing providers of products and services decides which businesses will grow rapidly and which will bite the dust. The competitive environment caused by consumers’ free choice supposedly drives innovation and efficiency, delivering a better overall consumer experience.
However, recent experiments on consumer behaviour have suggested that too many options can lead to a range of anxieties in consumers—from the fear of missing out (FOMO) on a better opportunity, to the loss of pleasure in a chosen activity (thinking “why am I doing this when I could have been doing something else?”) and regret from choosing poorly. The raised expectations presented by a broad range of choices can lead some consumers to feel ill-informed and indecisive when making a purchasing decision.
Fortunately, randomness offers us a simple way to overcome the choice-related anxieties. When faced with a multitude of choices, many of which you would be happy to accept, throwing a coin may be the better option. This “randomized” strategy can help us to focus on our true preference and sometimes making a quick good choice is better than making a slow perfect one, or indeed making no decision at all.
It’s important to remember that you are not required to follow the randomized decision blindly. The suggested choice is just designed to put you in the position of having to seriously consider accepting the specified option, but doesn't force your hand one way or the other.
For those of us who struggle to make decisions, it’s comforting to know that when struggling with a selection, we can get out a coin and allow it to help. Even if we resolve to reject the outcome, being forced to see both sides of the argument can often kickstart or speed up our decision-making process.
1. Which is closest in meaning to “bite the dust” in paragraph 1?A.Survive. | B.Fail. | C.Adapt. | D.Benefit. |
A.too many options could make consumers more anxious |
B.more choices usually led to better consumer experiences |
C.companies are more innovative in a competitive environment |
D.customers could make better decisions with enough information |
A.Focus on our true preference. | B.Delay the decision indefinitely. |
C.Accept the randomized strategy. | D.Throw the coins more than once. |
A.Economy. | B.Politics. | C.Health. | D.Psychology. |
【推荐3】When you go on a trip to America, you will see the word Motel on signs and notice boards. It is made up of “motor” and “hotel” and it is really a hotel for people who arrive by car (however, you don’t a need a car to stay at one). You have to pay when you arrive for your room, which usually has a bath. Meals are not provided but there will certainly be a cafeteria (自助餐馆). Americans eat a lot of salads and sandwiches. Along the main roads there are a lot of motels. Each tries to offer more than the others. Some provide television in every bedroom; others have swimming pools and so on. Motels are especially useful when you are in the country, far from a town or city. You will also find them in big national parks.
In these great national parks, you may meet guests you don’t expect to see. An American friend told me a short story. In the middle of a moonless night, she heard strange noises outside her motel window in the Yellowstone National Park in Wyoming. Thinking it might be a thief, she jumped out of bed, opened the door and crept towards a dark shadow. As she got close, she saw the thief. She was dreadfully frightened: it wasn’t a human thief — it was a big black bear. The bear was turning over some empty tins with its paws, looking for tasty bits of food. My friend decided to leave that particular thief alone!
There are also, of course, places called “rooming houses”, where they provide lodges (客房). You will see such signs as Tourists or Rooms Rent, and you could try one of these. A word of warning — looking for a room in New York during the tourist season is like looking for gold on the moon!
1. Motels provide all the following EXCEPT ______.A.Bath | B.swimming pools | C.TV | D.meals |
A.moved slowly | B.rushed out | C.threw away | D.ran fast |
A.an interesting story | B.bears usually look for food at night |
C.the experience of the author’s friend | D.we may meet animals in national parks |
A.tourists can find gold there | B.it is difficult to find a room there |
C.tourists can have a sweet dream there | D.there is a warning for tourists to New York |