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.

    British Airways booking secrets-and the best late deals this week: Short holidays and European city breaks.

    Dublin from $ 109 pp: Enjoy the Emerald Isle without the St Patrick's Day crowds. Departing 20th March, this package includes a two night stay at the four-star Kings Wood Hotel Citywest and return flights from London Stansted. Click here.

    Bruges from $ 159 pp: Treat mum to a mother's day city break in the medieval, fairly-tale town of Bruges and enjoy canal-side strolls and a nice helping of culture. Price includes two nights at the four-star NH Brugge with travel from London St Pancras, departing 20^th March. Click here.

    Madrid from $ 166 pp: Fly from Liverpool on March 27 for three nights' B& B at the three-star Espahotel Plaza de Espana. Real Madrid don't have a football game then, so sec if Ronaldo fancies a cerveza. Click here.

    French Alps from $ 499 pp: Save over $ 320 each on a week's skinning at Les Arcs 2000, staying catered at the Chalet Vanoise. Based on two sharing and includes flights from Manchester on March 18 and transfers. Six-day lift passes from $ 219, equipment hire from $ 65. Click here.

    Tenerife from $ 289 pp: Get your tan on early with a trip to the European home of beaches: Tenerife, with its postcard perfect golden sand. Spend seven nights at the four-star Hotel Spa La Quinta Park Suites, departing 6^th May and including return flights. Click here.

    The Adler Planetarium Chicago is home to more than 35,000 square feet of exhibits. From huge models of the Solar System, to ancient astronomical instruments , to interactive adventures, Adler's exhibit galleries provides a passageway for you to explore the universe. The Adler also offers mini science exploration activities that are quick l0-minute lessons. Visitors can learn some interesting astronomical facts from the small activity parts.

    The Adler Planetarium Chicago is the only museum in the world with two-full size planetarium theaters. Since 1930 , people. have been able to see the wonder of the stars in the historic Sky Theater. Powered by brand new Digistar 3TM technology, the StarRider Theater is a completely digital, virtual outer space environment. The famous Zeiss Planetarium projector is able to accurately reproduce the movement of every aspect(方面) of the night sky.

Do's and Don'ts :

    Do Take the Bus/Train: Leave the car at home for this museum trip. The Adler is located close to public transit(中转站).

    Don't Miss the Doane Observatory: When weather permits , the Doane is open at the Adler for observing with its 20-inch diameter telescope. Don't Miss Museum Special Events :The Adler offers a summer camp for kids from mid-June to August.

    Ticket Price :

    Adult: $ 28; child: $ 22. Book online now for a discount 37%.

    Regular Schedule :

    Mon.—Fri. 10 a. m.—4 p. m. ;Sat.—Sun. 10 a. m.—4:30 p. m.

    Summer Hours: 9: 30 a. m.—6 p. m. daily.

    Nearest Transit: Roosevelt Metro Station.

    Address: 1300 S Lake Shore Dr, Chicago, IL 60605.

    To eat only a vegan（素食的） diet might sound difficult, especially with many popular dishes containing meat or other animal products. Yet in 2017, veganism was described as “the fastest - growing lifestyle movement” in the UK, according to BBC news.

    A study by a UK market research organization, suggests that over 542,000 Brits went vegan during the previous decade, an increase of 360%. And the main force behind this increase was those aged 15-34 years old — 42% of recent vegans fall under that age range.

    So why exactly has veganism become so popular among young Brits?

    One reason could be that many young people want to protect the environment, as less meat consumption is known to be beneficial to the environment. Global meat manufacturing is believed to cause 18% of the world's greenhouse gas emissions（排放）, even more than that of all the world's cars, trains and planes combined. Another reason is that many of today's young people believe that it's wrong to kill animals to be used as food.

    Jess Murray, 22, a student at University College London, said that he chose to become vegan after realizing that eating animals is a choice that people make, rather than something that we need to do to survive. “Becoming vegan was an ethical (道德的) decision,” he told the Guardian.

    Social media is also believed to have given rise to the increase in veganism. Platforms such as Facebook allow young vegans to connect with each other much easier, while others such as Instagram have led to the creation of “vegan celebrities (名人)”, who share lips on vegan lifestyles.

    Despite the rising of veganism, Laura Wyness, an expert in diet and nutrition, said that meat is very important for people's health. “A strict vegan diet makes it difficult to get some minerals and vitamins that your body needs,” Wyness told BBC news.

    However, the popularity of veganism doesn't seem to be fading. “It feels more like this is something that is sticking.” said an expert of the Vegan Society, a UK charity that promotes veganism.

    Earlier this month a study showed that bees can teach themselves to play football. They can learn by watching and, rather than copy what they have seen, change it to make it better. Bees also have a clever trick for helping their friends find lunch. New research shows that bees leave smelly little footprints on flowers that help them know what flowers they and their family members have recently visited.

    The discovery was made by scientists from University of Bristol who report these smelly footprints help bees distinguish  between their own scent(气味), the scent of a relative and the scent of a stranger. And by using this ability, bees can improve their success at finding good sources of a food and avoid flowers that have already been visited and mined of nutrients.

    The Bristol team performed three separate experiments with bumblebees(大黄蜂)in which they were repeatedly exposed to rewarding and unrewarding flowers at the same time that had footprints from different bees attached to them. Each flower type either carried scent -marks from bumblebees of differing relatedness or were unmarked. The marks were either the bee's own marks, sisters from their nest, or strangers from another nest.

    The study shows that not only can bumblebees tell the marks of their own nest mates from strangers, but they can also discriminate between the smell of their own footprints and those of their nest mate sisters, which could help them to remember which flowers they have visited recently. But it doesn't explain how they use that in the wild. They may detect the footprints of their friends and keep moving on, since that flower may be tapped out. Or they may smell a bit of familiar foot smell and dive in, seeing it as a marker that nectar(花蜜)is present.

    When you're on the go, your best friend and resource can be your phone. In the age of smart phones, apps are like guiding stars: They can point you in the right direction for a hotel, list expenses, send postcards, and much more. When used together, these apps can be the basic travel tool, placing a wealth of information at your fingertips no matter where you are on the planet. U.S. News Travel has picked the essential travel apps, known for their utility and reliability. Best of all, they cost absolutely nothing.

    Trip It

    Your Personal Travel Agent

    Be your own travel agent and plan every detail of your trip-- from car rental to accommodating restaurants-- with Trip It. You can make travel schedule by hand, or simply forward the email confirmations of your flight, rental car, train tickets, and hotels to plans.

Weather Free

    Your Go-To Meteorologist(气象学者)

    Stop trying to explain the weather forecast on the evening news (particularly when it's in a foreign language.) The Weather Free app informs you (in English) of the climate in various locations. It features the local weather, and other key factors that will inform your decision about what to wear before stepping outside.

    Goby

    Your Event Guru

    When you're in a foreign city, you sometimes look around and ask: Where are all the people? Goby has the answer. This app pinpoints the neighborhood hot spots (including museums, hotels, eateries, and more) in your neighborhood. But its true value comes in finding nearby events. You'll discover concerts, plays, and more right around the corner.