American researchers found females are the more talkative sex because of a special “language protein” in the brain.

    The study, conducted by neuroscientists (神经学家) and psychologist from the University of Maryland, concluded that women talked more because they had more of the Foxp2 protein. The research, published in the Journal of Neuroscience, found that higher levels were found among humans that were women but in rats that were males. Their findings came after it was previously claimed that ladies speak about 20,000 words a day — over 13,000 more than men. “This study is one of the first to report a sex difference in the expression of a language-associated protein in humans or animals,” said Prof Margaret McCarthy, who led the study. In their study, the researchers attempted to determine what might make male rats more vocal than their female friends.

    They separated four-day-old rats from their mothers and then counted the number of times they cried out in the “ultrasonic (超声波的) range”, the frequencies higher than humans can hear, over five minutes. While both sexes called out hundreds of cries, the males called out twice as often, they found. But when the pups were returned to their mother's cage, she fussed over her sons first. Tests conducted on the parts of the brain known to be associated with vocal calls showed the male pups have up to twice as much Foxp2 protein as the females. The researchers then increased the production in the brains of female pups and reduced it in males. This led to the female rats crying out more often and their mothers showing more interest in them. In contrast, males became less “talkative”.

    The researchers then tested samples from ten children, aged between three and five, which showed that females had up to 30 per cent more of the Foxp2 protein than males, in a brain area key to language in humans.

    “Based on our observations, we assume higher levels of Foxp2 in girls and higher levels of Foxp2 in male rats is an indication that Foxp2 protein levels are associated with the more communicative sex,” said Prof McCarthy.

    “Our results imply Foxp2 as a component (成分) of the neurobiological basis of sex differences in vocal communication in mammals.”

    Money is the root of all evil (邪恶) and new study claims there may be some truth behind the saying. Scientists at the University of California Berkeley, US, announced on February 27 that rich people are more likely to do immoral things, such as lie or cheat, than poorer people. The scientists did a series of eight experiments. They published their findings online in the Proceedings of the National Academy of Sciences (PNA《美国国家科学院院刊》).

    They carried out the first two experiments from the sidewalk near Berkeley. They noted that drivers of newer and more expensive cars were more likely to cut off other cars and pedestrians at crosswalks. Nearly 45 percent of people driving expensive ears ignored a pedestrian compared with only 30 percent of people driving mow modest cars.

    In another experiment, a group of college students was asked if they would do immoral things in various everyday situations. Examples included taking printer paper from work and not telling a salesperson when he or she gave back more change. Students from higher — class families were more likely to act dishonestly.

    According to the scientists, rich people often think money can get them out of trouble. This makes them less afraid to take risks. It also means they care less about other people's feelings.

    Finally, it just makes them greedier. “Higher wealth status seems to make you want even more, and that increased want leads you to bend the rules or break the rules to serve your self- interest,” said Paul Piff, lead scientist of the study.

    Piff pointed out that the findings don't mean that all rich people are untrustworthy or all poor people honest. He said the experiments were to show how people living in different social situations express their instincts（本能）and values in different ways.

    Over the years, Brian Wansink, director of the Food and Brand Lab at Cornell University, has studied such things as how far Americans typically drive to buy food, how many times we refill our plates at all-you-can-eat buffets and how we organize our kitchens. In the mid-2000s he famously coined the phrase "mindless eating"(and wrote a book by that name) to focus attention on all the bad dietary decisions we make without really thinking about them.

    His new book, Slim by Design: Mindless Eating Solutions for Everyday Life, aims to change the design of restaurants, school lunchrooms, office cafeterias and homes so that the mindless choices we make will be more healthful ones. Some examples:

    Keep kitchen counters clear. No visible snack food, no bread, no nuts — not even breakfast cereal. In Wansink's research, "women who had even one box of breakfast cereal that was visible — anywhere in their kitchen — weighed 21 pounds more than their neighbor who didn't."

    Trick yourself into drinking less wine. "We tend to focus on the height of what we pour and not the width, so we pour 12 percent less wine into taller wineglasses than we pour into wider wineglasses." And the shape of the glass is not the only variable that affects how much we drink. Wansink writes: "Because red wine is easier to see than white wine, we pour 9 percent less red wine whenever we pour a glass."

    Wansink said his researchers also found that people ate less at restaurants when sat in well-lighted areas near windows and doors, than in darker areas or in the back. They ate less if they were offered a doggie bag, or to-go box, before they got their meals: apparently the idea of getting a "free" second meal outweighed the impulse (冲动) to clean their plates. Workers who frequently ate at their desks weighed 15.4 pounds less, on average, than those who didn't. Fruits and vegetables kept on the top shelf of the refrigerator were eaten at higher rates than those on lower shelves.

    The point, Wansink says, is to consider findings like those and change your environment or habits. Then you won't have to think about it: You'll just eat less.

    If you wish to become a better reader, here are four important points to remember about rate, or speed, of reading:

    ⒈Knowing why you are reading—what you are reading to find out—will often help you to know whether to read rapidly or slowly.

    ⒉Some things should be read slowly throughout. Examples are directions for making or doing something, arithmetic problems, science and history books, which are full of important information. You must read such things slowly to remember each important step and understand each important idea.

    ⒊Some things should be read rapidly throughout. Examples are simple stories meant for enjoyment, news, and letters from friends, items, or bits of news from local, or hometown, paper, telling what is happening to friends and neighbors.

    ⒋In some of your readings, you must change your speed from fast to slow to fast, as you go along. You need to read certain pages rapidly and then slow down and do more careful readings when you come to important ideas which must be remembered.

    How often do you exercise? A new study found that most kids aged 12 to 15 weren't getting enough physical activity. The results were based on about 800 kids. As part of the study, the kids tracked and reported on their own activity levels, and took physical exams.

    U. S. fitness guidelines suggest an hour or more of physical activity every day. According to the study, only 1 in 4 U.S. kids get enough physical activity.

    "It's certainly worrying to see that our kids have such a limited amount of physical activity each day," said Dr. Stephen Pont. He is an expert on children's health.

    Few kids in the study met the guidelines on physical activity that raises the heart rate and makes people breathe harder. Overall, about 25% said they got an hour of that kind of exercise every day. Kids also reported on which activities they did most often outside of school gym class--basketball for boys and running for girls.

    The study found that fat teenagers were less active than normal-weight girls and boys. Fat girls were slightly less active than normal-weight girls, but levels were similar among overweight and normal-weight boys. The study also said that the percent of fat children aged 2 to 19 was 17%, or about 12.5 million kids.

    "There's always room for improvement," said Tala Fakhouri, who was the leader of the study. She also said the results provide useful information to help with fitness campaigns such as Let's Move, which was initiated by Michelle Obama in 2010. To inspire kids to eat right and get in shape, Michelle visits schools and holds exercise events. She also calls on schools to offer regular gym classes.

    The study also found kids who get physical education at school may get better grades.

Body language can reflect our confidence level. {#blank#}1{#/blank#} and another way when we're nervous. At a glance （看一眼）, most people can tell if we're confident or not. So we should learn some tips to show confidence through body language so that we always appear confident and ready.

{#blank#}2{#/blank#} The first tip to show confidence with body language is to keep your hands out of your pockets. We often put our hands in our pockets when we're unsure of ourselves. And that's how other people will view us.

Keep your eyes forward

{#blank#}3{#/blank#}, it often feels natural to lower your head slightly and watch your step. However, this gesture communicates to others that you don't want to interact. And if you're not careful. you might get into the habit of doing it all the time. So keep your head up and your eyes forward. even when you're walking down the street by yourself.

Smile

Try this as an experiment: Smile at someone as you pass by them on the street or walk around the office. {#blank#}4{#/blank#}. Now wouldn't you like to have that effect on people all the time?

Firm handshakes

There are few things worse than reaching out your hand during an introduction and getting a handshake which is not firm enough. Don't be that guy. Instead, hold the other person's hand firmly and confidently. Of course, a handshake is not a contest. {#blank#}5{#/blank#}.

A．Take wide steps

B．Avoid your pockets

C．It's very likely that they'll smile back

D．When you're walking anywhere by yourself

E．Don't try to hold the other person's hand too long

F．If you want to show confidence with body language

G．We stand and walk a certain way when we're confident