Evaluating Sources (来源) 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. {#blank#}1{#/blank#}

    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. {#blank#}2{#/blank#}

    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. {#blank#}3{#/blank#} Carefully read or listen to information in order to fully understand it.

    Use your common sense. If a report seems too good to be true, probably it is. Be especially careful of information contained in advertisements. {#blank#}4{#/blank#} Evaluate “scientific” statements carefully, and be aware of quackery(江湖骗术).

    {#blank#}5{#/blank#} Friends and family members can be a great source of ideas and inspiration, but each of us needs to find a healthy lifestyle that works for us.

    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.

    My grandparents believed that you were either honest or you were not. They had a simple saying hanging on their living-room wall: “Life is like a field of newly fallen snow. Where I choose to walk every step will show.” They didn't have to talk about it; they showed this truth by the way they lived.

    They understood that honesty is an inner(内部的) standard for judging your behavior. Unfortunately, honesty is in short supply today. But it is the real bottom line in every area of society and a discipline (自制能力) we must demand of ourselves.

    There's a story told about a surgical nurse's first day on the medical team at a well-known hospital. She was responsible(负责) for all surgical instruments and materials during an operation. At the end of the operation, the nurse said to the doctor, “ You've only removed 11 sponges（海绵）, and we used 12. We need to find the last one.”

    “I removed them all,” the doctor assured her. “ No, you didn't , sir,” insisted the nurse. “ Think of the patient.”

    Smiling, the doctor lifted his foot and showed the nurse the twelfth sponge.

    So when you know you're right, you can't yield. Don't be afraid of those who might have a better idea or who might even be more intelligent than you are.

    Self-respect and a clear awareness (意识)of right and wrong are powerful parts of honesty and are the basis for enriching your relationships with others. Honesty means you do what you do because it's right and not just fashionable or politically correct. A life of principle, of not easily yielding, will always take you forward. My grandparents taught me that.

With the clicking of walking sticks and determined steps, a long line of walking group along the winding road is a fantastic sight. Almost each of the walkers is using some kind of fitness tracker. A few Fitbits, some Xiaomi wrist bands (手环), a couple of phone apps and some other pedometers (计步器) — and all, they say, are counting their steps.

    Fitness trackers are in. Sales figures for 2016 released by Internet Data Center (IDC) indicated 25% market growth compared to the previous year, with Fitbit taking the lion's share, followed by the brand Xiaomi.

    However, the wearables market has had a rollercoaster ride in recent months. Jawbone, once a popular fitness tracker brand, announced that it is leaving the consumer market. Microsoft has removed its Fitness Band on its online store although it is still available on retail (零售) giant Amazon. Fitbit remains a key brand name at the heart of the fitness tracker revolution. But it is recently reported to be cutting down on workers, and its founder James Park said it experienced “softer than expected” sales recently.

    Counting steps is probably the most common use of wearable devices (可穿戴设备), but recently experts have questioned whether the golden goal of walking 10,000 steps a day is actually worthwhile, and a US study concluded that health trackers did not aid weight loss.

Analyst Ben Wood from CCS Insight used to wear a fitness tracker on either wrist. Now, however, his concern is about users'experience — these devices don't tell you anything new after a while. There are also battery problems and many of the older and cheaper varieties aren't waterproof (防水的).

How parents can help with cyberbullying（网络欺凌）?

    43% of kids have been bullied online. One in four has had it happen more than once.70% of students reported seeing frequent bullying online. Many studies suggest that cyberbullying has become a serious problem worldwide and makes many kids suffer. {#blank#}1{#/blank#}

    Let teachers know about the situation. Many schools have protocols（协议）for responding to cyberbullying. Before reporting the problem, let your children know what you want to do so that you can make a plan that makes you both feel comfortable.

    Encourage your children not to respond to cyberbullying, because doing so just fuels the fire and makes the situation worse. {#blank#}2{#/blank#} Instead, you should keep the threatening messages, pictures, and texts, which can be used as evidence for the bully's parents, schools, or even the police.

    Limit your kids' access to the Internet. Though hurtful, many kids who are bullied can't resist the temptation（诱惑）to check websites or phones to see if there are new messages. {#blank#}3{#/blank#} Many websites and smartphones include parental control options that allow parents to control kids' online life.

    {#blank#}4{#/blank#} Follow your children on social media sites, but do not make comments or post anything on your children's whereabouts online. {#blank#}5{#/blank#} And also tell them why it's a bad idea to share it online.

A. Know your kids' online world.

B. But that doesn't mean you can do nothing.

C. Remind your kids of the seriousness of cyberbullying.

D. Make sure your kids figure out what to do about it.

E. Talk to them about the importance of private information.

F. So if you know how to deal with it, things will get much better.

G. Keep the computer in a public place and set limits on the use of cell phones.

    For art, the year 2115 will be one full of events. In May of that year in Berlin, the philosopher-artist Jonathon Keats' "century cameras" — cameras with a 100-year-long exposure (曝光)time — will be brought back from hiding places around the city to have their results developed and exhibited Six months after that, the Future Library in Oslo, Norway, will open its doors for the first time, presenting 100 books printed on the wood of trees planted in the distant past of 2015.

    As Katie Paterson, the creator of the Future Library, puts it: "Future Library is an artwork for future generations". These projects, more than a century in the making, are part of a new wave of "slow art" intended to push viewers and participants to think beyond their own lifetimes. They aim to challenge today's short-term thinking and the brief attention spans of modem consumers, forcing people into considering works more deliberately. In their way, too, they are fighting against modem culture — not just regarding money, but also the way in which artistic worth is measured by attention.

    In a similar fashion, every April on Slow Art Day, visitors are encouraged to stare at five works of art for 10 minutes at a time — a tough task for the average museum visitor, who typically spends less than 30 seconds on each piece of art.

    Like the Future Library, the century cameras are very much a project for cities, since it's in cities that time runs fastest and the pace of life is fastest. "Since I started living in a city, I've somehow been quite disconnected/' Anne Beate Hovind, the Future Library project manager, who described how working on the library drew her back to the pace of life she knew when she was growing up on a farm in her youth, told the Atlantic magazine.

People have long watched moths （飞蛾） and other flying insects flock to streetlamps, lights and flames. These insects appear attracted by the light. But a new study suggests they may just lose track of which way is up.

Previous theories say light probably blinds flying insects so that they get trapped by the light, or maybe they interpret light at night as a place to fly for a quick escape. Now the new study suggests flying insects instead turn their backs to the sky's light to keep their feet pointing toward the ground. Insects naturally turn their backs toward light. But when that light is from an artificial source, it may affect their sense of direction, leading to them flying in circles or diving toward the ground.

At a field station in Costa Rica, Samuel Fabian, an entomologist from Imperial College London in England and his teammates set up hanging and standing lights, and then used high-speed cameras to track wild, flying insects including moths and flies. Some circled the lights endlessly, and others flew sharply upward, losing speed until they couldn't fly any higher. When the light source pointed up, some insects turned around and headed for the ground. During the flight, the insects always kept the lights at their back even if they'd end up crashing. Crash landings were common when the team lit up a white sheet on the floor. But not when a white sheet—stretched into a height above the floor—was bathed in diffuse （漫射） light, much as the sky would be, insects flew through the area without getting trapped by the light.

The team also observed some species in a lab. Moths and dragonflies generally behaved like the wild insects, and they kept the light at their backs. However, in the lab, fruit flies, like oleander hawk moths—which can fly in the dark—could fly over LED lights without being thrown off course. In the wild, though, the moths still crashed. Maybe this is because, Fabian says, the insects can sometimes control their response to light, or over time, they might learn to avoid artificial light.