It was a hot, humid day, and my brother Walt and I had decided that the only way to survive it would be to go swimming in a deep swimming hole across Mr. Blickez's pasture(牧场) and through some woods.

    The only problem with our plan was that this pasture was guarded by a huge, mean Hereford bull. Mr. Blickez had told us that Elsie was them eanest bull in the township, maybe even the county, and we believed him. But the hotter it got, the more we thought there was something doubtful about his claim. For one thing, we remembered Mr. Blickez liked telling tall tales; for another, Elsie seemed like an odd name for a bull.

    Finally, I talked Mom into asking permission for us to walk through the pasture, but then another problem surfaced. Mom said she would talk to Mr. Blickez if we would take our cousin Joanie along with us. Joanie was almost two years older than me and a head taller. If her teasing ever got around my grade school, it would be all over for me. In fact, I still had a headache from a quarrel with her that morning. “I'm not going swimming with that dumb girl cousin.” I told my mom.

  “Either Joanie goes with, or you stay home alone,” Mom said inher serious tone. I gave in and we set out. On our way across the pasture, Walt yelled suddenly. Elsie had approached him quietly and was licking(舔) his back. Joanie and I dove under the wire fence, but while I was on the ground I looked up and saw that Elsie wasn't a big mean bull after all. She was going to keep licking my brother's back as long as he stood still.

    We had many good days growing up and visiting our secret swimming hole guarded by the so-called “big mean bull”. And as it turned out, fora girl cousin, Joanie hasn't been too bad. She's been one of my best friendsover the years.

    It may not come as a surprise but the world as a whole is getting richer. Some people have more disposable(可支配的) income to spend on luxuries such as holidays, cars, TVs and smartphones. Recent data has shown that the number of people living in extreme poverty(贫穷) has halved in recent decades. So should we celebrate the fact that more of us now have a better standard of living?

    Maybe not. Whilst the gap between rich and poor in some countries is narrowing, there is still a lot of inequality in other places-some people have a lot of money and opportunities and others don't. A recent report by Oxfam and Credit Suisse revealed how divided many of us are when it comes to wealth. A lot of the money in the world is in the hands of very few people. In fact, 48% of global wealth is owned by the richest 1% of the population.

    But some countries are attempting to reduce this inequality and make the poor, less poor. According to David Bryer from Oxfam, Brazil has been taking "some really sensible measures-measures around having more progressive(逐步发展的) tax, around investing in a higher minimum wage and investing in central public services." Having a higher minimum wage, can help people eat better and seek a better education. And more people with more money buy more things-and factories can produce more. In turn, a factory which produces more will need more workers. So, more jobs are created.

    Other wealthy individuals are doing their bit to help reduce inequality. Bill Gates, the founder of Microsoft, earned a lot of money from his company but when he retired, he and his wife Melinda, created a foundation to help the poor. He thinks that rich people should, of course, pay their taxes but he also advises that they should all "look at taking their wealth and being philanthropic, both in their own country and to help the global poorest."

    Bill Gates feels that giving money to help poor people is "fulfilling". But if other super-rich people don't want to experience this fulfilment then, according to Oxfam, very soon the wealthiest 1% will soon own more money than the rest of the world's population.

    The year 2018 will mark the 100th anniversary of the deadliest influenza outbreak in history. It is estimated that the influenza pandemic(瘟疫) of 1918 killed more than 50 million people around the world. Other estimates go much higher. Because of a lack of medical record—keeping, we may never know the exact number.

    The influenza was a fast killer. Some victims died within hours of their first symptoms. Others died after a few days. “Their lungs filled with liquid and they choked to death. ”The 1918 flu pandemic was also different from other outbreaks. It struck many young, healthy people. Viruses usually affect sick or old people.

    Although modem medicine effectively controls many diseases, influenza remains difficult to protect against, The World Health Organization estimates that every year influenza kills 250, 000 to 500, 000 people around the world. Each year, medical scientists develop flu vaccines(疫苗) which offer immunity(免疫)from some influenza viruses. But they can only guess which form of the virus will spread.

    Health officials remain concerned about another flu pandemic. New forms of the flu virus appear regularly. One example was the “swine flu”or H1N1outbreak in 2009. Anthony Fauci, Director of the National Institute of Infectious diseases in the United States says that virus caused a true pandemic.

    To stop the next pandemic, scientists are now researching how to create a universal influenza vaccine. In October 2017, Vanderbilt University Medical Center in the U. S. announced the Universal Influenza Vaccine Initiative. The university said researchers are leading an international effort to develop a universal influenza vaccine that will protect everyone against all forms of the flu anywhere in the world. The university added that researchers will begin tests in early 2018, the Human Vaccines Project, a public—private partnership, is funding the project. However, until a universal influenza vaccine is available, today's seasonal flu vaccine remains important.

    People with an impulsive personality refer to those who tend to do things without considering the possible dangers or problems first. According to a new study by researchers at the University of Georgia, such people may be more likely to have food addiction. The study found that people exhibiting impulsive behavior weren't necessarily overweight, but impulsiveness was related to a direct relationship with food, and therefore, less healthy weight.

    Food addiction has been compared to addictive drug use. Studies have linked the dopamine (多巴胺) release that occurs after tasting delicious food to the dopamine release that happens when people consume other addictive substances.

    Impulsive behavior involves several personality traits (特点). Two of these traits, known as negative urgency and lack of perseverance, were particularly associated with food addiction and high BMI (身体质量指数) during the study.

    Negative urgency is characterized by the tendency to behave impulsively when experiencing negative emotions. Some people might drink alcohol or take drugs. For others, it could mean eating to feel better. Lack of perseverance is when a person has a hard time finishing hard or boring tasks. People with a lack of perseverance might have difficulty attempting to change addictive eating behavior, which could also cause obesity.

    “Impulsiveness might be one reason why some people eat in an addictive way despite motivation to lose weight,” said Dr. Ashley Gearhardt, a clinical psychologist. He was involved in developing the Yale Food Addiction Scale in aid of those people. “We are theorizing that if food addiction is really a thing, then our measure, the Yale Food Addiction Scale, should be related to helping control impulsive action,” said Gearhardt.

    Clinical psychologist Dr. James MacKillop, whose lab was conducting the study, believes that therapies used to treat addictive drug behavior could help people who suffer from addictive eating habits.

    “Most of the programs for weight loss at this point focus on the most obvious things, which are clearly diet and exercise,” MacKillop said. “It seems that managing strong desires to eat would naturally fit in with the skills a person would need to eat healthily.”

    Elizabeth Blackwell was born in England in 1821, and moved to New York City when she was ten years old. One day she decided that she wanted to become a doctor. That was nearly impossible for a woman in the middle of the nineteenth century. After writing many letters asking for admission(录取) to medical schools, she was finally accepted by a doctor in Philadelphia. She was so determined that she taught school and gave music lessons to get money for the cost of schooling.

    In 1849, after graduation from medical school. She decided to further her education in Paris. She wanted to be a surgeon(外科医师) , but a serious eye problem forced her to give up the idea.

    Upon returning to the United States, she found it difficult to start her own practice because she was a woman. By 1857 Elizabeth and her sister, also a doctor, along with another woman doctor, managed to open a new hospital, the first for women and children Besides being the first woman physician and founding her own hospital , she also set up the first medical school for women.

    When Randy Heiss went hiking behind his Patagonia, Ariz. farm, the last thing he expected to find was a Christmas list from a little girl across the US-Mexico border. "I found this balloon on my morning walk near Patagonia on Sunday. Attached to it was a piece of paper with the Christmas wishes from a little girl," Heiss wrote on his Facebook page.

    When he brought the list home to his wife, who speaks fluent Spanish, they determined that the little girl had asked for Enchantimals toys, clothes, art supplies and various other gifts. That's when Heiss set out to make the little girl's Christmas dreams come true. Heiss said he had attempted to send Christmas letters to Santa Claus via balloon when he was a kid but never received a response.

    Heiss sent a Facebook message on Wednesday to XENY, a radio station in Nogales, to see if it could help him track down the girl or her family. He later received a response from the station, which had determined the author of the letter was an 8-year-old girl named Dayami, and the station wanted to set up a meeting between the two on Thursday. "It just changed my entire day," Heiss told the Washington Post. "Instead of going back to my office in Bisbee, I went with my wife to Walmart."

    The couple bought almost everything on Dayami's list. They also brought a few gifts for Dayami's little sister, Ximena. They told the children they were " ayudantes de Santa," or Santa's helpers.

    Heiss, 60, said the experience was very healing for him and his wife. Nine years ago, the couple's only son died. "Being around children at Christmas time has been absent in our lives," Heiss said. We now have friends for life. For a day, that border fence with its concertina wire melted away.