Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake, through diet or a vitamin supplement. ” Dr.Cedric Garland said in a telephone interview.

    Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004.

    “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units(IU) a serving. People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day, Garland said, adding that it was well within the safety guidelines established by the National Academy of Sciences.

    The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.

    African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake, the authors said.

    At least 35 percent of Beijing households will be covered by family doctor service at the end of this year. All local households will enjoy the service as of 2020, according to the Municipal Health and Family Planning Commission.

    It is good that Chinese communities can expect more general practitioners(从业者)，who do not specialize in any particular area of medicine but who are able to treat the general health problems for people of all ages. By the end of last year over 8 million residents in Beijing had reportedly signed up for family doctor services, accounting for more than 40 percent of the city's permanent population.

    Since 2009 China has launched scores of programs nationwide to ensure citizens have fairer access to elementary public health services ，among which the introduction of family doctors has been one of the most successful. Some regions have issued guidelines on the promotion of the family doctor service. And four months ago, Premier Li Keqiang said in this year's Government Work Report that the service should cover at least 85 percent of the Chinese cities this year.

    The expanding coverage, however, may not guarantee more residents will be offered quality medical services.

    Family doctors in some places rarely visit the families they are assigned to, and some of them have been struggling to solve patients problems either because of their unfitness or because they have too many households to attend to. In some cases, a family doctor might be assigned to see hundreds of residents a day.

    That highlights the need to better the arrangement of medical resources and to offer proper encouragement to family doctors, who should get patients to make appointments rather than employ temporary arrangements.

    Discover

    News magazine of science devoted to the wonders and stories of modern science, written for the educated general reader. Published by Disney Magazine Publishing Co., Discover tells many of the same stories professionals(专业人员) read in Scientific American. A truly delightful family science magazine, each issue(每期) brings to light new and newsworthy topics to make dinnertime and water-cooler conversations interesting.

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    Self

    Published by Conde Nast Publications Inc., Self is a handbook devoted to women's overall physical(身体的) and mental health. Every issue contains usable articles such as "Style Lab", in which wearable clothes are mixed and matched on non-models and the "Eat-right Road Map", with tips on how to eat properly.

    Cover Price: $35.86

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    InStyle

    InStyle is a guide(手册) to the lives and lifestyles of the world's famous people. The magazine covers the choices people make about their homes, their clothes and their free time activities. With photos and articles, it opens the door to these people's homes, families, parties and weddings, offering ideas about beauty, fitness and in general, lifestyles. Publisher: The Time Inc. Magazine Company.

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    Wired

    This magazine is designed for leaders in the field of information engineering, including top managers and professionals in the computer, business, design and education industries. Published by Conde Nast Publications Inc., Wired often carries articles on how technology changes people's lives.

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    Please Choose Cloud Services

    May be unsure, or you do not know where to begin. Trying every Cloud service would take a lot of time and work. But, the website Reviews.com might help.

    One valuable feature is the protection of digital files, including photos, videos, documents, music and more. If the worst happens and your computer crashes, or gets lost or damaged, your files can still found in the Cloud.

    Cloud services let you access your files from almost anywhere. No need to worry about a file stored on your computer when you are away from your desk. If you have an Internet connection, you can open your files from any computer, or from a phone, when they are stored using a Cloud service.

    Using a Cloud service makes sharing files easier. If you send documents to a group using emails, you may then wonder which version everyone is working with. When sharing files using a Cloud service, everyone will see the same document and the latest version.

    The first thing to consider is the amount of storage space you need. Check how much space you are currently using on your computer and mobile devices. If your computer or phone is filled with photos and you have little free space, you may want to move your photos to the Cloud. Some Cloud services are free. But, if you need a lot of space, you will probably need one that costs money.

    Even if everyone you have ever met is a Windows user, you still probably want a Cloud service that works with many platforms. You might become friends with an Android user or start a job with a company that computers on Apple!

    Think plants are just boring green things that you use for food and decoration? Think again! Plants are able to do some pretty awesome things that you're probably totally unaware of.

    Researchers have discovered that plants have the ability to communicate with an underground network made up of fungus (真菌) , which serves the plants in many ways. Tomato plants use the fungus web to warn each other of their own unhealthy conditions. Trees connected through the fungus network could move nutrients (养分) to and from each other. It is believed that larger trees move nutrients to smaller ones to help them to survive.

    Not only that, but they can also damage unwelcome plants by spreading poisonous chemicals through the fungus. It sounds like the plant world had the Internet before we did.

    Some plants have a rather impressive line of defense against being eaten. When sensing they are being swallowed, they give off a chemical into the air that attracts the insect's natural enemy. The enemy attacks the bug, thus saving the plants. This is basically the plant kingdom version of getting your older brother to beat up that kid who steals your lunch money.

    You might be aware that humans and animals have an internal clock. But did you know that plants also have this clock? This means they can prepare for certain times of day just like we do. Is it because they can react to light at sunrise? In a study, scientists found that plants use the sugars they produce to keep time, which help to regulate the genes responsible for the plant's own internal clock. So, in a sense, wake up with petunias (矮牵牛) is just as valid as ―wake up with the chickens.

    Nature is full of surprises. So for those of you who didn't know the wonders of plants, now you do.

    This year marks the 170th anniversary of Paul Gauguin's birth. He lived for just 54 years but he packed his brief life with activity.

    The French painter spent his early childhood in Peru before returning to France. As an adult, he continued to travel a lot. Most famously, he spent much of the last decade of his life in Tahiti, an island in southern Pacific Ocean. Indeed, Gauguin is best known for his colorful paintings of Tahitians and their culture.

    The restlessness of this great painter has been normal among modern artists since the middle of the 19th century. They're never satisfied for long with a certain style or way of life. Once something becomes conventional, it's turned down.

    The artistic culture that Gauguin developed from was that of Impressionism (印象派). Painters like Claude Monet had wanted to paint how they saw the world, not how their teachers taught them it should be seen. Gauguin, and similar artists like his friend Vincent van Gogh, moved even further away from "respectable" art than the Impressionists. For them, it was not simply a matter of seeing the world differently, but feeling and thinking about it differently, too.

    Gauguin saw, felt and thought differently from most members of European society. He thought that European culture was too fancy and not spontaneous. This is why he turned to the traditions of other parts of the world, like Africa, and, eventually, Tahiti. Artists like Gauguin used the word "primitive" for these cultures, but not as a negative term. For him, Europe, in becoming modem, industrial and scientific, seemed less natural than other parts of the world.

    In truth, Gauguin's paintings may be unconventional but they are certainly not "primitive". They are the work of a painter with great awareness of what he was doing. It was this awareness that made him such an important painter for those that came after, in the 20th century. When we look closely at the works of Gauguin we begin to understand Pablo Picasso, and especially Henri Matisse, a little better.