We live in a sweet world. An average American kid consumes(消耗) more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn't good for us. Researchers at the University of Utah used mice to make a study to prove the toxic effects of eating more sugar. They found it could influence people's health seriously.

    During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage is equal to a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice without eating so much sugar. Though the mice did not show signs of obesity or high blood pressure, male mice produced 25% fewer offspring(后代) than the other mice.

The reason why mice were chosen for research by scientists is not far to seek. “Mice have the genetic(基因)structure similar to humans'. Most substances(物质) that are harmful to mice are also harmful to people; it's likely that those important physical problems that cause the rising death rate among mice can also influence people,” says the study author James Ruff of the University of Utah. Findings from this study reveal negative effects that are not as detectable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can affect development and even shorten lives.

    Different types of sugar have different effects on the human body. Some of the sugar we consume comes from foods we might expect—candy, soda, and cookies. But much of the sugar that we eat is hidden. Food companies add large amounts of sugar to items we may not classify as sweets. To help cut down extra sugar consumption, nutrition experts suggest looking at the ingredients on food packages. Cutting sugar out of the American diet altogether may be difficult, but making every effort to control our nation's desire for sugar will avoid a sweeter future.

Senses That Work Together

    When we think about how our senses work, we usually imagine them operating separately: you sniff a flower, and the smell is delivered uninterrupted from nose to brain. However, it's more complex than that. Most evidence for cross-modal perception (知觉) comes from studies into sound and vision (视觉). But research that shows other senses crossing over is coming out all the time, and it seems that even sound and smell sometimes form an unlikely pairing.

    When New York researchers, Daniel Wesson and Donald Wilson, tried to find out the truth about a “mysterious” area of the brain called the olfactory tubercle (嗅结节)，they had to deal with this fact. Originally, they only intended to measure how olfactory tubercle cells in mice responded to smell. But during testing, Wesson noticed that every time he put his coffee cup down with a clunk (哐啷声)，the mouse cells jumped in activity. In fact, the olfactory tubercle is well-placed to receive both smell and sound information from the outside world. Later they found that among separate cells, most responded to a smell but a significant number were also active when a sound was made. Some cells even behaved differently when smell and sound were presented together, by increasing or decreasing their activity.

    Of course, mice aren't people, so research team has been carrying out further experiments. They pulled together a group of people and gave them various drinks to smell. Participants were asked to sniff the drinks, and then match them to appropriate musical instruments and produce the notes at different levels. The results were interesting: piano was regularly paired with fruity fragrances; strong smells sounded like the instruments that are made of metal.

    Further research found that listening to different sounds can change your perceptions. Studying taste this time, the team ordered some special toffee (太妃糖)and put together “soundscapes” corresponding to bitterness and sweetness. Participants tasted similar pieces of toffee while listening to each soundscape, and found the toffee more bitter or sweeter, depending on which soundtrack they were listening to.

    Studies like this are helping scientists correctly describe our understanding of the senses, and how the brain combines them with its advantage. The consequences are worth considering. Could we see musicians work together with chefs to produce sound-improved food and drink? Will you be ordering a coffee with a soundtrack to bring out your favorite smell? Come to think of it, that could be one thing you hope coffee shop chains don't get round to.

    There's no doubt that our character has a profound effect on our future What we must remember, however, is not merely how powerful character is in influencing our fate, but how powerful we are in shaping our own character and, therefore, our own fate. Character may determine our fate, but character is not determined by fate.

    It's a common mistake to think of character as something that is fully formed and fixed very early in life. It calls to mind old proverbs like "A leopard can't change its spots." and "You can't teach an old dog new tricks."

    This perspective that our character is "etched in stone" is supported by a great deal of modern psychology emphasizing self-acceptance. As Popeye says, "I am what I am." The hidden message is: Don't expect me to be more, better, or different.

    Ultimately (最后), these views of humanity totally undervalue the lifelong potential for growth that comes with the power of reflection and choice.

    How depressing it would be to believe that we can't choose to be better, more honest, more respectful, more responsible, and more caring. None of us should give up the personal seeking to improve our character. Not because we're bad, we don't have to be sick to get better, but because were not as good as we could be.

    There are so many things in life we can't control, whether we' re beautiful or smart, whether we have good parents or bad, whether we grow up with affirmation (肯定) or negation. It's inspiring to remember that nothing but moral will power is needed to make us better.

    No it isn't easy. But if we make a great effort to become more aware of the habits of heart and mind that drive our behavior, we can begin to place new emphasis on our higher values so that we become what we want our children to think we are.

    Tourism wasn't as important as it is today. In the past, only people with a good deal of money could travel on holidays to other countries. More people travel today than in the past because there is a growing middle class in many parts of the world; that is to say, people now have more money for travel. Special plane fares(费用) for tourists make travel less expensive and more attractive than ever before. One person doesn't travel for the same reason as another. But most people enjoy seeing countries that are different from their own. They also like to meet new people and to taste new food.

    Tourism causes many changes in a country and in people's lives. People build new hotels and restaurants and train native men and women as guides to show visitors interesting places. There're new nightclubs and other amusements. International tourism is clearly a big business.

    I admire my father for as long as I can remember. I loved the way he treated people with such respect and kindness.

    On Sundays we usually took the bus into Manhattan, where we would do interesting things, like riding the Circle Line. He would point out every landmark and tell us the history behind it. He loved to take us on the subway to Nathan's in Coney Island. Once there, he would give my sister and me each a five-dollar bill and then he would enjoy himself for the afternoon with his newspapers.

    In 1968, we went to see the movie “Oliver”, a Charles Dickens' classic story of a young orphan(孤儿) boy called Oliver. On the way home from the theater that afternoon he told us how he was raised in an orphanage(孤儿院) in New York after both of his parents died. He told us the nuns(修女) were wonderful to him and loved him like a mother would. As he grew older, he was placed in a few foster(寄养) families before he joined the Army.

    When we were teenagers, he still took us out each weekend and he would ask us to invite specific friends to join us and he would pay for them. We often went to Yankee Stadium to watch the baseball game and he bought us tickets in the least expensive seats. To keep the cost down, he waited for us in the car where he read his newspapers and then took a nap(小睡).

    He was always happy and appreciated everything he had. He loved his two little girls and later his two granddaughters. He gave so much, yet he had so little. He thought he was the richest man in the world.

Confidence Comes From Treating Others As Equals

    There's been recent discussion over Chinese attitudes toward foreigners, caused by another quarrel between a foreigner and a taxi driver. According to the studies described in the Oxford Handbook of Chinese Psychology, Chinese have lower self﹣confidence compared to Westerners. Yet does the result still apply to the Chinese people today？

    Yes and no. For the moment, different attitudes toward foreigners can still be found in China's society, with some displaying low self﹣confidence like "Foreigners are awesome （令人敬畏的）, and Western countries are awesome. We should respect them and be as polite as possible, and shouldn't let them look down on us, " and a few unfriendly opinions such as "Some foreigners are rude and disrespectful, and their level of civility （礼貌） is far behind China."

    Chinese used to be lacking in self﹣confidence. It might start from the modern history, after the failure in the Opium wars, and the following humiliation （耻辱） of being bullied （被欺负） and brought to their knees by Western guns. And the dark history is still to some extent affecting our mentality （心态） today.

    For some time, the Western world represents the best of everything in some Chinese eyes. But our state of mind is gradually changing. When asked "What makes you feel proud of your country？" in school classes in China, answers vary from the World Expo to the Olympic Games, from athletes to astronauts, from the mushrooming skyscrapers to busy metropolises, which have all filled us with growing self﹣confidence.

    While answering the question "Since China is so good today and Chinese people are more confident, why are an increasing number of Chinese emigrating abroad？" Zhang Weiwei, a professor at Fudan University, replied that at least 70 percent of Chinese migrants （移民） become more patriotic （爱国的） after leaving their home country, no matter whether they have become a naturalized citizen of another nation or not. Such result and experiences are much more convincing and have better effect than dozens of "patriotic education" classes.

    There is no reason for us not to be self﹣confident. We live in the world's second﹣largest economy. Chinese net financial assets per capita （人均纯金融资产） and the purchasing power of people have seen a sharp rise, with more and more people starting to purchase works of art, instead of only necessities. These all indicate a rising standard of life and self﹣confidence.

    Nevertheless, the point of the changing attitudes toward ourselves or other countries is not realizing other nations are better or worse than China, but treating them like how we treat our fellow Chinese. That is what confidence means, not being condescending （屈尊）, not worshiping, but looking each other in the eye with trust and respect.