Fighting racial stereotypes（模式化）on US campuses often begins by putting students of different ethnic backgrounds together — under one dormitory roof.

    Sam Boakye was a freshman at Ohio State University and the only black student on his floor. He was determined to get good grades — in part to make sure his white roommate had no basis for negative racial views. "You're pushed to do better, to challenge the stereotype that black people are not that smart," he told the New York Times.

    Several recent studies have found that having a roommate of a different race can reduce prejudice(偏见), diversify(使多样化) friendships and even promote students' academic performance. In a study by Ohio State psychology professor Russell Fazio, black freshmen who came to college with high test scores earned better grades if they had a white roommate—even if the roommate's test scores were low. Another study on student interaction by Duke University suggests that freshmen with roommates of a different race were the most likely to diversif“y their friendships. Just having diversity in classrooms doesn't do anything to increase interracial friendships," said Claudia Buchman, an author of the Duke study. “But living together with a different-race roommate does lead to more interracial friendships."

    There are, however, some problems with such room assignments. Fazio's study found that three times as many randomly(随机地) assigned interracial roommates weren't living together at the end of the semester, compared with white roommates. Interracial roommates also spent less time together, had fewer joint activities and were less involved with each other's friends than white pairs.

    As for Boakye, this is not the case. "A lot of white students come without much exposure（暴露）to diversity, so when their first interaction with a black guy isn't bad, they will make more black friends. I think I made a good impression on my freshman roommate. I saw him this year, and he said, "Hey dude, you're not the only black friend I have. That felt good."

    Humans were designed to stand upright(直立). And yet in this modern world, too many of us spend our days with our heads lowered for a simple reason: we're staring at the tiny screen of a smart phone.

    People spend an average of 2 to 4 hours each day with their neck bent while shooting off emails or texts. That's 700 to 1,400 hours a year. The success of social media has led to a rapid development of bad smart phone posture.

    The average adult head weighs 10 to 12 pounds when it's in the upright position. However, because of the gravity, bending your head at a mere 15 degree puts 27 pounds of pressure on your spine(脊椎)；a 30 degree neck bend could equal(等于) 40 pounds of pressure; a 45 degree bend adds the force of 49 pounds, according to the research from Dr. Kenneth Hansraj from New York. These stresses may lead to many problems.

    It's no secret that correct posture is better for your back. According to the researchers, good posture is described as ears aligned(成一条直线) with the shoulders. In proper alignment, spinal stress disappeared. It is the best position for the spine. Standing tall doesn't just make you look better; it improves your health, too. Other studies have found good posture has even been connected to ways of behaving. People who have poorer posture often have poorer physical and emotional health.

    The researchers describe bad posture（姿势）as “the head in a forward position and the shoulders dropping forward in a rounded position”. Bad posture has been connected to many medical problems, including headaches and other problems, depression and heart disease. This is why Hansraj said it's important to be mindful of your smart phone posture. While it is nearly impossible to avoid the technologies that cause these problems, people should make an effort to look at their phones with a correct posture.

    Some people might dream of splendid surroundings—but also need a reasonably affordable cost of living. Try one of these four astonishing spots for a magical retirement, from an International living.com report, where retirees can live well on less.

    Sintra, Portugal

    A favorite summer retreat of former royalty, which is just a 40-minute train ride from Lisbon, is the pastel-painted Palace of Pena, a 19th-century Romanticist marvel with pink turrets and daffodil-yellow tower on a hill surrounded by pine forests. A couple could live well in this arts-rich tourist town, though pricier than other cities in Portugal, on a budget of $ 3,065 a month.

    Cusco, Peru

    Cusco, Peru's most historic city, is a UNESCO World Heritage site. Once an Incan capital. Cusco has clear, sunny days. Colonial structures have been changed into fashionable restaurants, shops and even homes. Superfoods, like chia seeds, quinoa and maca, are inexpensive and plentiful. A retired couple could enjoy a good life on$ 1,700 a month.

    The West Coast, Ireland

    The Wild Atlantic Way is a cycling or driving route that stretches across the west coast of Ireland. At the heart of the route is one of the most amazing natural wonders, the landmark Cliffs of Moher in County Clare—one of Ireland's most visited natural attractions. On a budget of around $ 2, 800 a month, a retired couple could live quite comfortably.

    San Miguel de Allende, Mexico

    San Miguel was declared a UNESCO World Heritage City in 2008.The colonial centro has much to offer retirees: low cost of living, arts, charming local cultural traditions and mild weather year-round. San Miguel is a few hours' drive from Mexico City. The days are comfortably warm and the nights blessedly cool. A retired couple could live comfortably on a monthly budget of $ l, 650.

    After finishing a meal at an American Chinese restaurant you probably expect to receive a handful of fortune cookies after you pay the bill. Fortune cookies are in Chinese restaurants throughout the United States. It's rather satisfying to crack open a cookie at the end of your meal and read your “lucky fortune” on the slip of paper inside.

    The exact origin of the fortune cookie is unknown. It is thought that the tasty snack was the first introduced into San Francisco in 1914, after an immigrant began distributing the cookie with “thank you” notes in them. These “thank you” notes were intended as symbols of appreciation for friends who stood with him through the economic hardship and discrimination of his early life in America.

    There is an alternate origin story. Los Angeles is regarded as the site of the fortune cookie's invention. In this version of the story, David Jung, a Chinese immigrant residing in L. A., is thought to have created the cookie in order to uplift the spirits of the poor and homeless. In 1918, Jung handed out the cookies for free to the poor outside his shop and each cookie contained a strip of paper with an inspirational sentence printed on it.

    Fortune cookies first began to gain popularity in mainstream American culture during WWII. Chinese restaurants would serve them in place of desserts, as desserts were not popular in traditional Chinese cuisine. Today fortune cookies are not tied to Chinese-American culture. In fact, the largest fortune cookie manufacturer is located in the United States and it produces 4.5 million fortune cookies a day —— an evidence to the modern-day popularity of the snack. However, an attempt to introduce the fortune cookie to China in 1992 was a failure, and the cookie was cited for being “too American.”

    So the next time you break open a fortune cookie and read a fortune about the many successes you should expect in your future, remember that the conclusion to your Chinese restaurant meal may not be as Chinese as you think.

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    From Antigua to Zanzibar, these spots promise an incredible trip for 2019.

    Antigua, Guatemala

    "Antigua is worth every penny, but that doesn't mean you'll have to empty your wallet," says Hudson. There are plenty of budget-conscious activities. It won't cost you a coin to visit Santo Domingo del Cerro, an outdoor sculpture park. Wanting something sweet? Head to ChocoMuseo. Admission is free and so are the samples!

    Odessa, Ukraine

    Odessa is having a bit of a tourism boom nationwide-not that we're surprised, given its sandy beaches and pastel-colored buildings-but it's still fairly under the order for international audiences. You can also count on this port city for affordable fun. Tickets to the Odessa Opera House start at a mere $ 2!

    Bogotá, Colombia

    "Travelers on budget will find Colombia's vast capital, far more of a bargain and every bit as fascinating," says Hudson. "It's free to visit Museo de Oro and on Sundays many of the big roads are closed to accommodate food carts, street entertainers, and pedestrians."

    Zanzibar

    Zanzibar attracts vacationers with its white sand beaches, greenish-blue tides, colorful coral reefs, and oceanfront seaside. Of course, wandering in historic Stone Town is pretty appealing too. Either way, you needn't spend a penny in this amazing place. It's also worth noting that Jozani Forest is the only place in the world you can see endangered red colobus monkeys.