There are good reasons to value our friendships.Some years ago a public-opinion research firm,Roper Starch Worldwide,asked 2007 people to name one or two things that said the most about themselves.Friends far outranked homes jobs, clothes and cars.

    “Ironically,” says Brant R.Burleson, professor of communication at Purdue University in West Lafayette, Ind., “the better friends you are, the more likely you'll face conflicts.” And the outcome can be what you don't want—an end to the relationship.

    The good news is that most troubled friendships can be mended.

    Swallow your pride. It wasn't easy, but that's what Denise Moreland of Hickam Air Force Base in Hawaii did when a friendship turned sour.For nearly four months,Moreland,45,had watched over Nora Huizenga's two young daughters, who were living with their father on the base,while Huizenga,40,completed training as a dental hygienist in Nevada.“I felt honored to be asked to step in,” Moreland says.

    “When Huizenga returned at Christmas,” Moreland recalls,“I had so much to tell her, but she never called.”

    One daughter had a birthday party, but Moreland wasn't invited. “I felt like I'd been used,” she says.At first, Moreland swore to avoid Huizenga.Then she decided to swallow her pride and let her friend know how she felt. Huizenga admitted that she'd been so worried about being separated from her family that she'd been blind to what her friend had done to help her. Today she says, “I would never have figured out what happened if Denise hadn't called me on it.”

    When a friend hurts you, your instinct is to protect yourself.But that makes it harder to solve problems,explains William Wilmot,author of Relational Communication.“Most of us are relieved when differences are brought out in the open.”

    Apologize when you're wrong—even if you've also been wronged.But over the course of a friendship, even the best people make mistakes. “We don't think clearly when we're arguing,” says Michael Lang,a professional mediator (调解人) in Pittsburgh. Instead, says Lang, ask: “What's going on? This doesn't make sense.”

    See things from your friend's point of view. Sociologists Rebecca Adams Rosemary and Blieszner interviewed 53 adults who each had many friendships lasting decades. “We were curious how these people managed to sustain strong friendships for so long,” says Blieszner. Tolerance is key, the researchers learned.” It's surprising how often a dispute results from a simple misunderstanding,” adds psychotherapist Anne Frenkel.

    Accept that friendships change. “Friendships change as our needs and lifestyles change,” Wilmot observes.

    Making friends can sometimes seem easy,says Yager.The hard part is keeping the connections strong during the natural ups and downs that affect all relationships.Her suggestion: Consider friendship an honor and a gift,and worth the effort to treasure and nurture.

    Have you ever felt a sudden feeling of joy because you heard a favorite song playing? Then you know that music can have a strong effect on your emotions.{#blank#}1{#/blank#}It can help get you out of a bad mood (心情) or stay in a good one, says Alicia Ann Clair, professor at the University of Kansas. {#blank#}2{#/blank#}

    To cheer up, listen to Latin music or anything with a strong beat or a fast speed {#blank#}3{#/blank#} When you want to relax after a busy day, music with a slower speed can calm you down.

    Listen to calming music before you start any stressful activities, advises Dr. Clair. "Once you' re in a good state of mind, it' s easier to keep it." You can lower stress at work with music, too, by playing relaxing tunes (曲调).{#blank#}4{#/blank#}"If you listen to them all day long, you' 11 stop noticing them," Dr. Clair explains. Then the music won't have any effect.

    {#blank#}5{#/blank#}"To feel energetic, start with something relaxing, and then gradually increase the speed and beat," says Dr. Clair. For example, first play some nice slow love songs, and then listen to something more energetic. When you want to calm down after a busy week at work, just do the opposite.

A. Music can also help you relax and feel active.

B. Try to take advantage of this power of music.

C. But only play them when you really need them.

D. Loud and fast music can fill you with energy.

E. There are different kinds of music around the world.

F. Put on your favorite song, but only if it is one that can lift your spirits.

G. You can change your mood by changing from one kind of music to another.

    There is one type of illness in the world that has a severe effect on more people than anything else and is very deadly. If untreated, this illness could affect everything you do. What is this illness? Depression. Serious depression requires professional treatment. Self-induced depression is something each of us can change.

    Everyone's circumstances are different, but the causes of self-induced depression are common: low self-esteem, hurtful thinking and a bad attitude.

    So how can we change the way we think, feel, and have a cheerful attitude?

    First we must look at ourselves, truly and honestly examining our motives for what we wish to accomplish. If you are dissatisfied because you feel you haven't or can't do anything, then one step is needed—to set goals.

    Always start your goals relatively small and easy to attain. Think of them as sand; one grain may be insignificant(微不足道的) but as a group they form the beach. Once you have set and attained small goals for yourself, move on to slightly larger, more challenging goals.It takes not just setting goals but positive thinking. How can we obtain this?

    There are a number of factors that can make us think negatively and one of those is diet.In my opinion, a person who eats a lot of take-out and fast food is feeding their body junk. Start by eating better foods which give the body much NEEDED minerals. If your physical body is happy, it's much easier for your mental body or “thinking ability” to be happy.

    Next, exercise. Half an hour a day is recommended for positive well-being. Then think about good memories you had, or generally think of things that make you smile. Remember, everything you wear costs money but to wear a smile is free. A smile can be the difference between an average day and a great day.

    If you follow these steps, positive change is on the way.

    We all know what a brain is. A doctor will tell you that the brain is the organ of the body in the head. It controls our body's functions, movements, emotions and thoughts. But a brain can mean so much more.

    A brain can also simply be a smart person. If a person is called brainy, he is smart and intelligent. If a family has many children but one of them is super smart, you could say, "He's the brains in the family." And if you are the brains behind something, you are responsible for developing or organizing something. For example, Bill Gates is the brains behind Microsoft.

    Brain trust is a group of experts who give advice. Word experts say the phrase "brain trust" became popular when Franklin D. Roosevelt first ran for president in 1932. Several professors gave him advice on social and political issues（问题）facing the U.S. These professors were called his "brain trust".

    These ways we use the word "brain" all make sense. But other ways we use the word are not so easy to understand. For example, to understand the next brain expression, you first need to know the word "drain". As a verb, to drain means to remove something by letting it flew away. So a brain drain may sound like a disease where the brain flows out the ears. But, brain drain is when a country's most educated people leave their countries to live in another. The brains are, sort of, draining out of the country.

    However, if people are responsible for a great idea, you could say they brainstormed it. Here, brainstorm is not an act of weather. It is a process of thinking creatively about a complex topic. For example, business leaders may use brainstorming to create new products, and government leaders may brainstorm to solve problems.

    If people are brainwashed, it does not mean their brains are nice and clean. To brainwash means to make some accept new beliefs by using repeated pressure in a forceful or tricky way. Keep in mind that brainwash is never used in a positive way.

    Experts like to say the best form of exercise is whatever kind you'll actually do. But that may not always be the case; new research finds that people who combine exercise with their social lives may be at an advantage over solitary（独自） exercisers. Tennis, badminton and soccer are all better for longevity(长寿) than cycling, swimming, jogging or gym exercise, according to the research.

    The study was based on data from about 8,500 adults who were part of the Copenhagen City Heart Study. They completed a health and lifestyle questionnaire, which included questions about type and frequency of physical activity, and were monitored by the researchers for around 25 years, a period during which about 4,500 of the subjects died.

    Tennis came out on top in the research. Compared with people sitting all day, those who reported playing tennis as their main form of exercise could expect to add 9.7 years to their life time, followed by badminton (6.2 years), soccer (4.7 years), cycling (3.7 years), swimming (3.4 years), jogging (3.2 years) and health-club activities (1.5 years).

    Tennis likely took the top spot because "it's very interactive," says study co-author Dr. James O'Keefe, a physician at Saint Luke's Mid America Heart Institute. "At every point you're talking. It's just a very natural way to emotionally bond with people, besides getting your exercise." But he adds that the study may not have been able to fully account for the fact that wealthier, better-educated people—who tend to be healthier to begin with—may be more likely to play tennis.

    Activities like running and weight lifting still extend your life and offer plenty of other health benefits. But for the best possible benefits, O'Keefe says gym-goers may want to consider combining those workouts with activities that foster social connection.

    O'Keefe, whose exercise typically includes running and weight lifting, says he's even changed his own behavior because of the study: he and his family have taken up badminton.

    "You can't play badminton without feeling like a kid again," he says. "It's just pure fun."

    Scientists around the world are striving for effective detection of cancer in the early stages, which is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, and a Chinese scientist may have found a quick way of knowing whether malignant tumors (恶性肿瘤) exist in a patient's body, with just one drop of blood.

    Malignant tumors in early phases can be cured. However, it's extremely difficult to be aware of cancer in its early stages, as patients don't show obvious symptoms and thus it can only be found in its later stages, which is already too late, so to detect cancer early remains a global challenge for scientists.

    Back in 1989, scientists have found a kind of heat shock proteins (HSP), named Hsp90α, which existed in human bodies and can be used as a cancer biomarker detection kit. Scientists around the globe have been working on it since then, and more than 10, 000 journals have been published on accredited magazines, yet no one has actually turned their research results into medical products.

    However, Luo Yongzhang and his team in Tsinghua University's School of Life Sciences in Beijing seemed to have cracked the code, after working on the problem since 2009.The team has produced an artificial Hsp90α protein for clinical use that gains structural stability by regrouping proteins. The test kit can diagnose multiple kinds of cancer by analyzing a drop of human blood. This means they are able to "create" the protein, in any quantity, and at any time they wish to.

    The kit has since been used in clinical trials involving 2, 347 patients at eight hospitals in China. It was the first clinical trial in the world to test if the protein could be a useful tumor biomarker for lung cancer, and it succeeded. Now, the kit has been approved to enter the Chinese and European markets, 24 years after Hsp90α was discovered.