Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease．But there is another factor that can cause your heart problems more immediately: the air you breathe.

    Previous studies have linked high exposure (暴露）to environmental pollution to an increased risk of heart problem, but two analyses(分析) now show that poor air quality can lead to heart attack or stroke (中风）within as little as a few hours after exposure．In one review of the research, scientists found that people exposed to high levels of pollutants (污染物）were up to 5% more likely（可能的） to suffer a heart attack within days of exposure than those with lower exposure．A separate study of stroke patients showed that even air that the U．S．Environmental Protection Agency (EPA) considers to be of “moderate” (良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.

    The authors of both studies stress（强调）that these risks are relatively（相对的）small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure．However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices．So stricter regulation（规章制度）by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.

    Hilversum is a medium-sized city between the major cities of Amsterdam and Utrecht in the Gooi area of North Holland, the Netherlands. Unlike most of the Netherlands, Hilversum is actually in a hilly area with the soil mostly consisting of sand. Once called the Garden of Amsterdam, it still attracts travelers to come over to cycle and walk through the surrounding forests. They visit it for a relaxing day off from the urban madness. For Dutch people, Hilversum is all about textile (纺织) and media industries, and modern architecture.

    In history, Hilversum was largely an agricultural area. Daily life was marked by farming, sheep raising and wool production. A railway link to Amsterdam in 1874 attracted rich traders from Amsterdam to Hilversum. They build themselves large villas (别墅) in the wooded surroundings of the town. One of the families moving in was the Brenninkmeijers, currently the wealthiest family of the Netherlands. They moved in after big success in the textile industry and aided a substantial textile industry in Hilversum. But the textile boom lasted only several decades. The last factory closed in the 1960s.

    The change to a media economy started in 1920, when the Nederlandse Seintoestedllen Fabriek (NSF) established a radio factory in Hiversum. Most radio stations called in the large villas in the leafy areas of the town. Television gave another push to the local economy. Hilversum became the media capital of the Netherlands, and Dutch televison stars moved into the leafy neighborhoods surrounding the town.

    In the early 1900s, modern architcts W.M. Dudok and J. Duiker placed hundreds of remarkable buildings in Hilversum. These modern architectural masterpieces (杰作) are so many that Hilversum almost feels like an open air museum. Dudok alone shaped most 20th century Hilversum and approximately 75 buildings in 1928-1931. It has wide international fame and is included in many architecture textbooks. The building has a remarkable shape and looks like a combination of “blocks”. Actually, one may start his journey of modern architecture by walking or biking the W.M. Dudok Architectural Route in Hilversum.

    Here are three best destinations for you to discover in 2018 if you ho heart-stopping adventure, a close-up look at history or the perfect meal.

    Los Cabos, Mexico

    Located at the tip of the Baja Peninsula, the two small colonial(殖民地的) towns of Cabo San Lucas and San Jose del Cabo have become the hottest vacation destinations in Mexico in recent years. With wide, original beaches, lively nightclubs, natural resorts, and a farm-to-table food scene, the oasis(乐园)of Los Cabos is drawing tourists in record numbers. As a result, the hotel scene is booming, with a lot of new developments and repairs completed this year.

Zambia

    Until now, Zambia has had little recognition as one of Africa's great safari(狩猎远征) destinations. Yet experts know it as the birthplace of the walking safari. In South Luangwa National Park, visitors can expect to see more animals than baobab trees, while Liuwa Plain National Park is the setting for the world's second-largest wildebeest(角马) migration, when tens of thousands of the creatures head across the plain from neighboring Angola.

Brussels, Belgium

    Visitors may want to return to the Belgian capital in 2018 to visit two cutting-edge museums. The Millennium Iconoclast Museum of Art opened to show contemporary art from around the world. There's also the Citroen Cultural Centre, which will launch its first exhibition in May. The JAM Hotel with exposed brickwork and concrete beams housed in a former art school, is the perfect place for culture-lovers to stay. don't leave town without experiencing beer culture at youthful breweries(啤酒厂) like Brasserie de la Senne or Brussels Beer Project.

    The European Union(EU) is an organization of European countries. The countries are independent and are governed in different ways. In the United Kingdom, for example, the head of state is a king or queen. In France, on the other hand, the head of state is a president. But each of them sends representatives to European Parliament, which has some control over what happens in each of the member countries.

    The idea of the EU began in the 1950s. The first members were France, Germany, Belgium, Luxembourg, the Netherlands and Italy. Little by little, the number increased during second half of the twentieth century. By the year 2000, there were 15 member countries. The new countries were Austria, Denmark, Finland, Greece, Ireland, Portugal, Spain, Sweden and the United Kingdom.

    In 2004, the EU increased to 25 members. The Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, the Slovak Republic and Slovenia, plus the Mediterranean islands of Cyprus and Malta all became members. The expanded EU has a population of more than half a billion people, twice as big as the population of the US.

    Social media is one of the fastest-growing industries in today's world. Your friends' lives may look more exciting than yours on Facebook, Twitter, and Instagram, but a new research shows it is because they are faking(伪造) it.

    A recent survey has found around two-thirds of people on social media post images to their personal information to make their lives seem more adventurous. And more than three quarters of those asked said they judged their peers based on what they saw on their Instagrm, Snapehat or Facebook pages.

    The British survey, by smart phone maker HTC, found that, in order to make our own pages and lives appear more exciting, six percent also said they had borrowed items to include in the images in order to pass them off as their own. More than half of those surveyed said they posted images of items and places purely to show off, causing jealousy among friends and family.

    Behavioral psychologist Hemmings said the trend was unsurprising due to the rise of social media. "We're living in a world instant communication." she said. "Fashion and style used to live and die in magazines; now people are in search of authentic, peer-to-peer recommendations as well, making social media an equal power house to magazines and newspaper."

    "With images being shared in an instant, we desire to know what our friends are wearing, or what super stars are buying, as soon as they have got them." Such is the influence of social media sites like Instagram, 76 percent of those asked also said seeing items on social influences them to buy them, with men more likely to take style advice and buy what they see.

    Are you a social media addict? Are you always checking your smart phone to see how many "likes" you've received for your latest post? Maybe you feel comforted by the sound that someone has sent you a message?

    Don't worry, you're not alone. We check our phones an average of 150 times a day, and around 30% of the total time spent online is devoted to social media. Some experts now fear this habit could be damaging our mental health.

    This is something particularly bothering young adults, according to a study from the University of Pittsburgh. It found the more they used social media, the more likely they were to be depressed. In tests, those people who checked social media frequently were 2.7 times more likely to be depressed compared to those who spent most of their time generally surfing the Internet, who had just 1.7 times the risk.

    Some of us certainly feel sad when we're ignored on social media sites, or when we see someone else having a better time than us. But depression is a more serious condition and clinical psychologist, Abigael San, recently told the BBC that ,"It's a real issue, and it's been getting significantly worse over the last 5﹣6 years. You can get so hooked that it takes you away from your real relationships. "However, Abigael does admit that social media is more likely to worsen pre﹣existing issues than directly cause them.

    Other research by the University of Glasgow found that teenagers are affected by the 24﹣hour demands of their social media accounts. It found that those with higher levels of emotional investment in social media, and who use it at night, were more likely to feel depressed and anxious.

    Despite these warning signs, why do some of us continue to keep clicking? Well, I suppose we all want to be liked and we don't want to miss out on a conversation that's taking place online. But we need to know when to switch off our virtual online world and connect with the real world instead.