China is a country on the move—especially around its Lunar New Year holiday. This year, the holiday crush（客流量） promises to be even heavier than before.

    Government officials estimate that Chinese people will take to the air, roads and railways 3.62 billion times over a 40-day period around the nation's most important holiday this year as people push their way home for family gatherings or to satisfy their new-found passion for travel.

    Getting tickets to all those would-be travelers is a discounting challenge that annually tries patience. And it is the railway system that routinely is most unable to cope. Railways are the transport of choice for low-cost long-distance travel, and that's where the ticketing system routinely falls down.

    Much of the criticism has, focused on the railway's online purchasing system, which has been unable to keep pace with the huge demand and also failed to stop scalpers（票贩子） from ending up with many of the hard-to-find tickets.

    While insisting that online sales were the fairest way to get tickets for travelers, railway officials told reporters that the public need to be patient. Efforts were being made to provide online identity checks that would reduce the ticket scalping problems. While officials had little good news for rail passengers, they did manage to bring a few smiles to those traveling by car as the country's extremely expensive highway tolls （通行费） will be free of charge for the period of the official holiday.

    Retired nurse Sue Collins was just beginning the second length of her local pool when her morning swim suddenly became anything but a pleasure.

    Two months ago Sue, 69, who has never suffered from asthma or any other breathing problem in the past, suddenly found herself hard for breath.

    “I felt as if my throat and oesophagus (食道) were closing up,” says Sue.

    Sue is convinced the problem is related to the indoor swimming baths. “I spend half the year in Turkey and swim every day outside in a pool or the sea there and never have this problem,” she says.

    She may be right, because although a trip to the pool is the perfect exercise for many, the chlorine (氯气) used to keep the water free from germs can lead to problems.

    But in most cases it's not the chlorine that causes problems, but the by-products formed when chlorine interacts with other substances — and this is mostly due to people not showering before they enter the pool.

    “This then poisons the water for them and for others,” says Dr. Hull. “The chlorine interacts with sweat and urine(尿素) on the skin and forms by-products called chloramines that float above the surface as a gaseous solution that can be inhaled in.”

    Chloramines are heavier than air so hang over the water where they are easily breathed in. Some believe they may cause lung disorders. A Swedish study in 2013 examining the health of 146 workers at 46 indoor pools found that 17 per cent had airway trouble at work — but no problems at home.

    As Dr. Hull says: ‘People need to remember that showering isn't just for them. It is for the greater good.'

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    It was the day after Halloween when my grandmother was admitted to the hospital with the worst headache she'd ever had. While posing in our costumes the night before, we knew something was wrong, just not how wrong.

    Grandma's house was the central gathering place of my family. Sunday lunches, birthday dinners, Easter, Thanksgiving, and Christmas — all were our traditions, with her as hostess. While my parents were busy running their small business, there were many nights when Grandma fed me and put me to bed in her spare room, until they came to get me. I spent my summers at Grandma's and I went everywhere with her. I couldn't imagine a time when she wouldn't be around me.

    Then November 1,1991 began her month-long stay in the hospital—she suffered from a rare infection (感染)called nocardia asteroides. After being born in the year of the Great Depression, living through World War II, raising three kids, and being widowed at the age of 48, Grandma never expected to live into her seventies. The infection in her brain seemed to confirm that she wasn't long for this world. But that's not the end of her story. A team of doctors successfully removed the abscess(脓肿), and Grandma even made it into a local medical journal. Her doctor called her “the brain lady”.

    Grandma celebrated her 85^th birthday in March this year. In the almost 23 years since her recovery, she's seen two of her four grandchildren get married and welcomed three great-grandsons. Although they damage something in her house, she loves it when my two boys come over. And while I know they make her day, seeing her love blossom for another generation makes my day too. Happy Grandparents' Day to my amazing grandmother!

    “Attention, everyone!” Miss Dalrymple looked at her class of ten-year-olds. “Today we are going to create a special card for Father's Day, which falls on this weekend.” Then she busied herself handing out the paper and art materials to her noisy pupils.

    They were a mixed punch. Some came from the rich side of the town, but the majorities were from parents who struggled to get jobs. So she had not been eager to carry out this activity.

    “Think about all the things that your dad does that make him special,” she said loudly as she approached the last table. “You can write a poem or short story thinking of the positive characteristics that make your dad special. The written part of this activity should be completed before you start to decorate your card.”

    Andrew looked at the blank page. He had never met, spoken to, or been hugged by his dad, so how could he write about him? Once when he was looking in his grandma's photo box, he had seen an old black and white photo but it was badly creased(弄皱) and difficult to recognize any clear features. She had quickly taken it from him and buried it deeply among the rest, never to be found again. After thinking for a while, he wrote:

Dear Dad,

    You are a person I do not know and would probably not recognize as I only saw an old photo of you a long time ago. I think and wonder about you often, especially when I have no one to talk to about the Saturday fixtures(体育活动). One day when I grow up I will do an Internet search to find you, but I am not sure whether I will be successful as several attempts by the Child Support Agency have not been successful. Happy Father's Day, Dad.

Love,

Andrew

    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.

    Many seniors feel pressured to go straight from high school to college, but Camden Olson, who graduated from the Latin School of Chicago in the US last year, didn't give in. She decided to spend a gap year-taking a year off before college-raising a guide dog for Guiding Eyes for the Blind in Maine. The non - profit provides trained guide dogs to blind and visually - impaired (视力障碍的) people. "This is something I've always wanted to do." Olson said.

    It is becoming more and more popular among American teenagers to have a gap year. Some students use the year off to figure out what they want to do: travel the world or save money for college.

    Olson is using her time to follow a passion she's had since 7th grade. For years, she kept an eye on guide dog services until she came across the opportunity at Guiding Eyes. With support from her friends, family and teachers, Olson went for it. Olson's volunteer work centers around Derby, a one-year-old black dog.

    "My job is to raise him to be well-mannered and socialized," she said. "Guide dogs can't be distracted. They go everywhere with their visually-impaired owner. They give a blind person a lot of support, too."

    Of course, there's an end in sight for Derby and Olson's close bond. When Derby celebrates his own graduation, Olson will have to say goodbye to him.

    "No doubt there will be tears, but, if he passes, I will be so happy for him to become a working dog," she said.

    While some do not agree that gap years are a good choice, Olson said she's seen major success. In fact, she'll be attending Princeton University soon and is thinking about majoring in biology.

    "I think I'm already so much more mature than I was," she said. "So many kids come back from gap years a lot more focused and prepared."