You are a new manager at the American branch of your German firm in Chicago. With a few minutes to spare between meetings, you go to get a quick cup of coffee.

    "Hey, David, how are you?" one of the senior partners at the firm asks you.

    "Good, thank you, Dr. Greer," you reply. You've really been wanting to make a connection with the senior leadership at the firm, and this seems like a great opportunity. But as you start to think of something to say, your American colleague breaks in to steal your spotlight.

    "So Arnold", your colleague says to your boss, in such a casual manner that it makes your German soul cringe(畏缩), "So what's your Super bowl prediction? I mean, you're a Niners fan, right?"

    The conversation moves on, and you walk silently back to your desk with your coffee. You know how important small talk is in the U.S., and you feel jealous of people who can do it well.

    There's nothing small about the role that small talk plays in American professional culture. People from other countries are often surprised at how important small talk is in the U.S. and how naturally and comfortably people seem to do it —— with peers, men, women, and even with superiors. You can be the most technically skilled worker in the world, but your ability to progress in your job in the United States is highly dependent on your ability to build and maintain positive relationships with people at work. And guess what skill is critical for building and maintaining these relationships? Small talk.

    What can you do if you are from another culture and want to learn to use small talk in the U.S. to build relationships and establish trust? Work hard to hone(磨练) your own version of American-style small talk. Watch how others do it. You don't have to imitate what they do; in fact, that would likely backfire because people would see you as inauthentic(假的,不可信的). But if you can develop your own personal version, that can go a long way toward making you feel comfortable and competent.

    Language learning apps are very popular now and offer opportunities to learn vocabulary and practice grammar. But there has been a discussion about just how effective such apps can be.

    Among the most popular apps are Duolingo and Busuu. A previous research found positive results on the use of them. But it mainly concentrated on studies with learners who had signed up to language courses and these apps worked as an after-class support, so the results were not always reliable. A recent study of 4,095 Busuu users has been carried out aimed to find out if users can actually learn a language with an app.

    Busuu provides learning materials for 12 different languages. It offers special model where some content is available for free while some content is not. We find that its users are an even mix of men and women. More than half consider themselves to be at the beginner level as there is a decrease in users as their language levels go up. Most people use the app because of personal interest, or because they want to study or live abroad. Female users tend to use it less often but for longer periods of time than male users.

    Getting any feedback on Busuu depends on whether your answer is correct or not. While it is helpful, this is not the sort of feedback language teachers prefer, as it does not explain why the answer is right or wrong. In spite of this, feedback in the app is very highly rated.

    More than 92% of respondents state that the app has met their expectations and 86% rate the app as very good or good. In fact, more than 80% of the users surveyed strongly agree that using the app has helped them improve their knowledge of the language they are learning.

    Besides, language learning apps also create an environment where mistakes are only known to the users, and this can address the performance anxiety that many learners suffer from when asked to speak a foreign language. So language teachers should encourage their students to use them to do the grammar work, leaving precious class time for more language communication.

    The spine (脊柱) stands at the center of your health, providing your body with structure and support. It also contains a major collection of nerves that deliver electric signals from the rest of the body to your brain. So it's important to take care of it.

    Staying in a good position is one of the most important things to keep your spine healthy. A proper position means standing or sitting while keeping your spins straight, except for its natural bending. Positions play a vital part even when you're asleep. Stomach sleeping is far from a good idea. Many people prefer sleeping on their side, which is in the interests of their spine. Sleeping on your back has lots of benefits yet can cause lower back pain and put some pressure on your spine.

    Staying still for too long — even if your position is good — can be hard on your back. Especially if you work at a task most of the day, it's important to get up and stretch (伸展) periodically. Strength exercises with light weights like push-ups can also help by strengthening the muscles. However, don't overdo the exercise, as repeated movements can hurt the muscles around the spine, as trying to lift heavy weights with poor technique.

    Vitamins also affect the health of your spine. In particular, vitamin B and omega-3 fatty acids help keep nerves healthy. Another important part is vitamin D, which is required for strong bones. Vitamin D can come from some foods, but it's also absorbed from sunlight, so it may help to do some exercises outside. At last, many of the actions necessary to keep a spine healthy are similar to those used to protect your health in other ways. So protect your back, and the rest of the body will benefit.

    When John was growing up, other kids felt sorry for him. His parents always had him weeding the garden, carrying out the garbage and delivering newspapers. But when John reached adulthood, he was better off than his childhood playmates. He had more job satisfaction, a better marriage and was healthier. Most of all, he was happier. Far happier.

    These are the findings of a 40­year study that followed the lives of 456 teenage boys from Boston. The study showed that those who had worked as boys enjoyed happier and more productive lives than those who had not. "Boys who worked in the home or community gained competence (能力) and came to feel they were worthwhile members of society, "said George Vaillant, the psychologist (心理学家) who made the discovery. "And because they felt good about themselves, others felt good about them."

    Vaillant's study followed these males in great detail. Interviews were repeated at ages 25, 31 and 47. Under Vaillant, the researchers compared the men's mental­health scores with their boyhood ­activity scores. Points were awarded for part­time jobs, housework, effort in school, and ability to deal with problems.

    The link between what the men had done as boys and how they turned out as adults was surprisingly sharp. Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed. The researchers also found that IQ and family social and economic class made no real difference in how the boys turned out.

    Working—at any age—is important. Childhood activities help a child develop responsibility, independence, confidence and competence—the underpinnings (基础) of emotional health. They also help him understand that people must cooperate and work toward common goals. The most competent adults are those who know how to do this. Yet work isn't everything. As Tolstoy once said, "One can live magnificently in this world if one knows how to work and how to love, to work for the person one loves and to love one's work."

    Can you imagine being able to remember every single experience of your life and every word in your favorite book? That's what Becky's life is like, and as wonderful as it sounds, it can also be quite terrifying at times.

    Three years ago  Becky was reading a newspaper article which mentioned that it was impossible for people to remember the details of their life in the first three years. "What nonsense (胡说八道)!" she thought, because she could clearly remember her life all the way back to when she was just 12 days old. Her parents had carried her to the driver's seat of their car and laid her down for a photo. But it wasn't nonsense. She was just one of only 80 known people who have a condition called HSAM(Highly Superior Autobiographical Memory).

    Becky's unusual condition was recently shown on a program called 60 minutes, where reporter Allison tested her ability by asking her questions about her favorite book series, Harry Potter. Allison would pick up a book and open a page and read her a line. Immediately Becky would name the book, chapter number, chapter name and could recite every word until Allison told her to stop.

    Being able to remember every little detail is a great ability, but as every person with HSAM will tell you, it can be very hard to deal with. Forgetting is one of the things we use to get over sad experiences in our lives, but it's something that people like Becky are unable to do. Even walking on the street and lightly bumping(撞) into somebody brings back memories from Becky's childhood, when a boy knocked her over. She's taken right back to that time, living the experience all over again. Also, like Becky, people with HSAM never do well in school, because they have problems filtering(过滤) through all the information, remembering only the important bits.

    Becky's special brain could help scientists find a way to treat people with terrible illnesses like Alzheimer's. Her condition could hold the secret to treating or even preventing Alzheimer's.