Children in the United States eat too much pizza that some researchers now argue the food should join the ranks of sugary drinks and fast food for the harm they do to health．

    In a new study, the researchers found that pizza is a large source of calories, saturated fat(饱和脂肪)and salt in children's diets．Children should not eat more than two slices of pizza for a meal，and should pair that with salad, rather than with another high-calorie food，the researchers concluded．

    “Parents should aim to control pizza consumption(消费), particularly as a snack where it was shown to have a very adverse impact on children, and they should put their pizza dollars toward healthier brands．”Said Lisa Powel, director of the Illinois Prevention Research Center．

    Pizza has become a matter of focus in recent years for researchers who look at the meals children eat, rather than the nutrients within them．Studies have found pizza is among the greatest sources of calories for children．

    “Since pizza remains a common part of children's diet, we need to make 'healthy' pizza．”Powel said．To make pizza healthier, food producers should reduce its saturated fat and salt, and increase its whole grain content,” she said．

    Whether or not pizza is harmful enough to be picked out as an unhealthy food, the study attracts attention to a larger issue with the modern American lifestyle, said Alexis Tindall, who was not involved in the flow research. “Many foods are eaten too frequently and in large sizes,” said Tindall．To solve the problem, people don't have to give up eating pizza, but instead, they can eat smaller and healthier pizza，”she said．

    “Make it at home, instead of ordering it out where you don't have any control over how it's made.” Tindall said. “When we make it at home, we can choose healthier ingredients，increase the vegetables, reduce fat, and put in less cheese．Pizza doesn't have to be just pepperoni(意大利辣香肠)and cheese．”

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    Here's an idea whose time has come: A flu shot that doesn't require an actual shot.

    For the first time, researchers have tested a flu vaccine patch (疫苗贴) in a human clinical trial and found that it delivered as much protection as a traditional injection with a needle. Doctors and public health experts have high hopes that it will increase the number of people who get immunized (免疫的) against the flu.

    Seasonal flu is responsible for up to half a million deaths around the world each year according to the World Health Organization. A team led by Georgia Tech engineer Mark Prausnitz has come up with an alternative method that uses “microneedles”. These tiny needles are so small that 100 of them, arranged in order on a patch, can fit under your thumb (拇指).Yet they're big enough to hold vaccine for three types of flu.

    None of the study volunteers had serious side effects. The groups that got patches had mild skin reactions that were not seen in the regular needle group, while the volunteers in the regular needle group were more likely to experience pain. Overall, 70 percent of the volunteers who got vaccine patches said they'd rather use them again than get a traditional flu shot. The study authors declared it a success on all fronts.

    The biggest beneficiaries could be people in low- and middle-income countries, where flu vaccines are hard to come by. Reducing pain is nice, but other benefits—the patch costs less，is easier to transport, doesn't require refrigeration, can be self - administered and doesn't cause waste of needles—are even better.

    “Microneedle Patches have the potential to become ideal candidates for vaccination programs,” wrote Katja Hoschler and Maria Zambon of Public Health England.

    Humans are social animals. They live in groups all over the world. As these groups of people live apart from other groups, over the years and centuries they develop their own habits and ideas, which are different from other cultures. One important particular side of every culture is how its people deal with time.

    Time is not very important in nonindustrial societies. The Nuer people of East Africa, for example, do not even have a word TIME that is in agreement with the abstract thing we call time. The daily lives of the people of such nonindustrial societies are likely to be patterned around their physical needs and natural events rather than around a time schedule(时间表)based on the clock. They cook and eat when they are hungry and sleep when the sun goes down. They plant crops during the growing seasons and harvest them when the crops are ripe. They measure time not by a clock or calendar(日历), but by saying that an event takes place before or after some other event Frequently such a society measures days in terms of "sleeps" or longer periods in terms of "moons." Some cultures, such as the Eskimos of Greenland measure seasons according to the migration of certain animals.

    Some cultures which do not have a written language or keep written records have developed interesting ways of "telling time". For example, when several Australian aborigines want to plan an event for a future time, one of them places a stone on a cliff or in a tree. Each day the angle of the sun changes slightly. In a few days, the rays of the sun strike the stone in a certain way. When this happens, the people see that the agreed-upon time has arrived and the event can take place.

    In contrast(成对比), exactly correct measurement of time is very important in modern, industrialized societies. This is because industrialized societies require the helpful efforts of many people in order to work. For a factory to work efficiently(well, quickly and without waste), for example, all of the workers must work at the same time. Therefore, they must know what time to start work in the morning and what time they may go home in the afternoon. Passengers must know the exact time that an airplane will arrive or depart. Students and teachers need to know when a class starts and ends. Stores must open on time in order to serve their customers. Complicated(复杂的)societies need clocks and calendars. Thus, we can see that if each person worked according to his or her own schedule, a complicated society could hardly work at all.

    At a comedy night at Johns Hopkins Univerity in Maryland, members of the school's comedy(喜剧) club bring lots of laughter to their classmates with funny speeches and humorous body movements. These college student comedian's humour entertains busy, young people and eases their stress.

    Yet the club member Arella Shua says comedy is serious work. Every comedy starts as an individual project-- each member writes their own material. Then they try it out in weekly club meetings where all club members read the material, going joke by joke and seeing what works and what doesnt. Nothing unsatisfactory will be compromised(妥协). In this way comes a satisfying comedy.

    Ariella joined the club last year. Now she does not go anywhere without bringing something on which she can take notes. "Whenever I just have a thought in my head or when I see something or overhear someone saying something in the library, I just put it down, "Arielae explained. "when I'm trying to write my own set, I go through that……to see if there is anything in there that I can use."

    Club president Nicholas Scandura finds writng one of the many skills he has developed since joining the club."Writing jokes takes a lot of critical thinking." he said. The club gives its members a sense of community. When they meet, they share funny experiences. tell jokes and laugh.

    Harry Kuperstein discovered the club was a natural fit. Noticing the funny qualities of different situations improved his way of looking at the world. Becoming an active member also helped him work on the future skills he'll need as a medical doctor. "Having jokes ready to go might help smooth these interactions and make you a better public speaker, " he said.

My writing career began at the age of ten. That year, my mother gave me my first journal to help me deal with the 1 of my grandmother's death. In many ways, my grandmother was the 2 behind my own writing career. 

When she was alive, my grandmother had 3 much emotional pain, but she also knew that writing was her key to 4 . While growing up in Galicia, Poland, during World War I, she 5 both her parents, and then had to care for herself and her eight-year-old sister. She found solace (慰藉) in journal writing. 

Many years after her death, I 6 her journal and read every word. The void(空虚感) she had left in my life became stronger as the years progressed and I had my own health issues to 7 , such as being diagnosed with breast cancer at age 47. My 8 caused me to write down my grandmother's life story, based on the 9 of her journal. Although at times the writing was 10 , it did bring me close to her once again and help me more 11 understand her many hardships. 

Keeping journals has helped me 12 emotionally. Whether you're 13 by change, loss or pain, finding the time to write is 14 to the healing process. So why not 15 your pen and write down whatever comes to your mind?