People born in winter are more likely to suffer mental health disorders, according to a recent study carried out by researchers at Vanderbilt University in Tennessee.

    Researchers raised baby mice from birth to weaning (断奶) in either “summer” light cycles of 16 hours of light and 8 hours of dark or “winter” cycles of 8 hours of light and 16 hours of dark. A third group experienced 12 hours of light and 12 hours of dark a day.

    Then half the winter mice stayed in a winter cycle, while half switched to a summer schedule. The summer mice were similarly split. The mice raised in equal periods of light and dark were split into three groups, one of which stayed on the 12­hour schedule, one of which joined the winter group, and one of which joined the summer group.

    After 28 days, it turns out the summer­born mice behaved the same whether they stayed on the summer cycle or switched to winter. But among the winter­born mice, those stayed in winter kept their previous schedule, while those that switched to summer stayed active for an extra hour and a half, which indicates that mice born and weaned in a winter light cycle showed dramatic disruptions（破坏） in their biological clocks.

    The finding is the first of its kind in mammals, and it could explain why people born in winter are at higher risk for mental health disorders.

    “We know that the biological clock regulates(管理) mood in humans,” said study researcher McMahon. “If the mechanism (机制) similar to the one that we found in mice operates in humans, then it could not only have an effect on a number of behavioral disorders, but also have a more general effect on personality.”

    Time wasters are real enemies of success. Time wasters could be people, events or habits that lead to the opposite path away from our goals. The most important starting point in removing the time wasters in life is to know about them. We need to sit down and analyze the activities which take our time.

    Start by making a list of our activities and sort out the neither urgent nor important ones. Sometimes it could be a simple addiction to a TV Soap Opera, constant distractions, or even one of our core （核心的）activities that we are not excellent at doing. We can, for instance, imagine that we are a business owner and we keep sabotaging our business deals, leading the company into great financial problems. It may be time for us to have our associates do the marketing while we concentrate on the areas we are best in. The next thing would be to make sure that we plan our daily activities. One of the obvious reasons is that we will have an upper hand in fighting against time wasters in our schedule. If what we want to do or what we don't want to do becomes clear, our focus is strengthened.

    Moreover, when we think of people we spend time with, we are sure to notice that some have a more positive impact on our success while others have a negative one. It is important to be able to distinguish them especially with regard to our schedule. While we do not advocate for everyone to throw away relationships, it is good to know that helping a friend who is emotionally disturbed can wait till dinner time. Finally, do the same to our habits. List all the habits and addictions that take any amount of our time. Then, take a little time to straighten them out in line with their importance and urgency.

    Depending on our analysis, kill those that are harmful to our goals in life.

    Indian-origin Anvitha Vijay has given a new meaning to the phrase “age is just a number”; she has proved that achievements and knowledge follow passion and not just age and experience.

    Vijay, who lives with her parents in Melbourne, Australia, at the age of seven realized that her piggy bank did not have enough money to hire a developer to make her an app, so she decided to teach herself how to code. With the help of YouTube videos, the young techie learned to code. For one entire year, she watched multiple coding tutorials on the web and became a programmer herself.

    Vijay's inspiration for developing the apps was her little sister, who was still learning to talk. Therefore, Vijay developed an educational app for children that were her sister's age. The app is called Smartkins, which uses about 100 sounds and flashcards of different animals that help children learn and identify. Later, Vijay developed a similar iOS app for children to identify and learn colors. Each app has been downloaded thousands of times.

    Anvitha's skills won her a scholarship to attend a big tech conference hosted by Apple in San Francisco, California. There, she got tips from the pros. She went to workshops where she learned about the latest software for app building.

    All that training led to an idea for a third app. This one, called GoalsHi, inspires kids to practice good habits. Users are rewarded for achieving goals, such as eating their vegetables or practicing piano. Anvitha says the rewards are like getting a sticker for a job well done.

    Anvitha's goal is to continue creating technology that helps kids learn while having fun. But even more important to her is that the world sees the power of technology in kids' hands. “The more training we get in tech at an early age,” she says, “the better chance we have of becoming creativity champions who will one day change the world.”

    As Amy Hagdorn rounded the corner across the hall from her classroom, she ran into a tall boy from the fifth grade running in the opposite direction.

    "Watch it. Squirt." the boy yelled, as he kept away from the little third grader. Then, with an unfriendly smile on his face, the boy took hold of his right leg and imitated the way Amy limped(跛行) when she walked.

    Amy closed her eyes for a moment.

    "Forget it!" she told herself as she headed for her classroom.

    It wasn't as if he were the only one. It seemed that ever since Amy started the third grade, someone teased her every single day. The tease made Amy feel all lonely.

    Back home at the dinner table that evening, Amy was quiet. Her mother knew that things were not going well at school. That's why Patti Hagdorn was happy to have some exciting news to share with her daughter

    "There's a Christmas Wish Contest on the newspaper, she announced." Write a letter to Santa and you might win a prize.

    Out came a pencil and a piece of paper and Amy went to work on her letter. She wrote:

Dear Santa Claus,

    My name is Amy. I am 9 years old. I have a problem at school. Can you help me, Santa? Kids laugh at me because of the way I walk and run and talk. I have cerebral palsy(脑瘫). I just want one day when no one laughs at me or makes fan of me.

Love

Amy

    The next day, a picture of Amy and her letter to Santa made the front page of the News Sentinel. The little girl's story spread quickly. She asked for such a simple, yet remarkable Christmas gift-just one day without being teased.

    During that unforgettable Christmas season, over two thousand people from all over the world sent Amy letters or cards of friendship and support.

    Amy did get her wish of a special day without being teased. Additionally, teachers and students in her school talked together about how bad tease can make others feel.

    Antarctica's ice white environment is going green and facing other unexpected threats. Scientists say that as temperatures go up in the polar area, invading (入侵) plants and insects, including the flies, cause a major threat.

More and more of these invaders, in the form of larvae(幼虫) or seeds, are surviving in coastal areas around the South Pole, where the temperature has risen by more than 3℃ over the past three decades. Glaciers have melted, exposing more land which has been occupied by mosses that have been found to be growing more quickly and thickly than ever before—providing potential green homes for invaders.

    “The common house flies are a perfect example of the problem the Antarctic now faces from invading species,” said Dominic Hodgson of the British Antarctic Survey. “It comes in on ships, where it exists in kitchens and then at bases on the continent. It now has an increasing chance of surviving in the Antarctic as it warms up, and that is a worry. Insects like the house flies carry bacteria that could have a deadly effect on native lifeforms.”

    The Antarctic has several native species of insects. Together with its native mosses these are now coming under increased threat from three major sources: visiting scientists increasing numbers of tourists and global warming. However, it is global warming that is the main driver of the greening of Antarctica.

    In 2015, more than 38, 000 tourists visited Antarctica. “These tourists are often very careful about not leaving waste or having mud. But they could carry seeds or larvae on their boots when they set foot on the Antarctic, “ said Hodgson.

    More and more invasive insects and plants have been found on the Antarctic and have required removal. “The insects and plants that are native to Antarctica have survived there for thousands of years,” said Hodgson, “We have got to act now if we want to save the environment.”

    When Casey Waletich, the director of safety and operations at the Hillsboro School District in Oregon, decided to start a campaign against bullying (欺凌）in his district, he knew he had to get the students on board.

   "We knew that this had to be a student-led effort. The days of having schools do things without the involvement of the students are over，"Mr. Waletich says.

    So he got a group of students together and asked them how they would like to do things. The resulting campaign," Rethink, Redefine, Where Do You Stand?" was launched in October 2014.

    The Hillsboro campaign is just one example of how schools nationwide are increasingly turning to students to develop-anti-bullying movements designed to not just discourage bulling, but also to encourage students to get involved.

    In 2013, some 20 percent of high school students reported experiencing bullying, according to federal data on Stop Bulling gov. The figure jumps to 28 percent when middle school students are included. Some 70 percent of young people say they have witnessed bullying.

    In response to these issues, anti-bullying campaigns in which students have a central role are being conducted across the country. From West Jordan, Utah(where students participated in a three-year character-building program to stop bullying), to Lisbon, Iowa, and Goodrich, Mich, school officials report that their students are taking ownership.

   "This year I've noticed our students are already thinking about what they need to do to make Sunset Ridge an accepting, safe environment." Said Julie Scherzinger, a guidance councilor at Sunset Ridge Middle School in West Jordan." Students come up to me and ask if anyone needs help"

   "There are many reasons why having students at the center is most

important." Says Ron Avi Astor, a professor in social development at the University of Southern California in Los Angeles." Bullying takes place when adults are absent. The kids see and hear more and can go and inform adults when they aren't there to respond immediately"

   "Teaching kids to step up when someone is being bullied teaches them how to be responsible citizens." Ron Avi Astor added.