It's a Saturday morning, and I am eager to fly away.My husband and I will meet up with our son on the other side of the country to learn and explore together.Sitting now at the airport gate,my husband wanders away to stretch his legs.Moments later,he returns and whispers in my ear.I rise and follow him around the comer toward a large window facing the landing area.

    On the road, Marines stand straight and the plane door is open.A white hearse(灵车）is parked nearby.A man and a soldier stand on either side of a woman,supporting her and waiting for what is to come.Airport personnel stand in reverent stillness.A few people place their hands over their hearts,as I have done.We're joined in witness,sending respect to an honorable soldier whose name we'll never know.

    The woman looks heartbroken. She cries, knowing she will never hear "Mom”from her son. She'll never feel his tender embrace or enjoy his sweet peck on her cheeks.Another man's face is twisted because of the grief.His son,the tiny boy he no doubt wrestled playfully,the teen he probably taught to drive,and the son he stood so proudly by,now lives only in his memory.

    Those behind the glass stay silent, reflecting on this loss, as the family and soldiers leave.Some of us women, with sorrowful expressions, move slowly away, sharing a mother's profound grief .Soon,each of us will fly off in planes and return to an ordinary life made extraordinary by this soldier's courage，by this family's sacrifice and by this love shared by all that look out of the window.

    Some educators told us that more years of school could help students get higher scores on intelligence tests. That was a finding of a study of teenage males in some countries. Now, another research shows that physical activity may help students do better in their classes.

    The research comes as educators in some countries are reducing time for activities like physical education. They are using the time instead for academic（学术的）subjects like math and reading. The studies appeared between 2008 and 2014. They included more than 55, 000 children, aged 6 to 18.

    Amika Singh:“ According to the results of our study, we can conclude that being physically active is beneficial for academic performance. There are, first, Physiological explanations, like more blood flow, and so more oxygen to the brain. Being physically active means there are more hormones(荷尔蒙)produced like endorphins(内啡肽). And endorphins make your stress level lower and your mood improved, which means you also perform better.”

    Also, students taking part in organized sports learn rules and how to follow them. This could improve their classroom behavior and help them keep their mind on their work.

    The study leaves some questions unanswered, however. Ms. Stash says it is not possible to say whether the amount or kind of activity affected the level of academic improvement. This is because of differences among the studies.

    The researchers said they found only two high-quality studies. They needed more high-quality studies to confirm (证实) their findings. They also pointed out that “results for other parts of the world may be quite different.”

    Still，the general finding was that physically active kids are more likely to do better in school. Ms. Singh says schools should consider that finding before they cut physical education programs. Her paper on “Physical Activity and Performance at School” is published in the Archives of Pediatric and Adolescent Medicine.

    In most parts of the world, many students help their schools make less pollution. They join “environment clubs”. In an environment club, people work together to make our environment clean.

    Here are some things students often do.

    No-garbage lunches. How much do you throw away after lunch? Environment clubs ask students to bring their lunches in bags that can be used again. Every week they will choose the classes that make the least garbage and report them to the whole school.

    No-car day. On a no-car day, nobody comes to school in a car. Not the students and not the teachers! Cars give pollution to our air, so remember: walk, jump, bike and run. Use your legs! It's lots of fun.

    Turn off the water! Did you know that some toilets can waste twenty to forty cubic (立方) meters of water an hour? In a year, it would fill a small river! In environment clubs, students mend those broken toilets. We love our environment. Let's work together to make it clean.

Volunteer Opportunities

    Ring the bells

    The Salvation Army needs bell ringers for its annual Red Kettle Christmas Campaign. Two hour shifts begin on Nov.12 and run Mondays through Saturdays. Volunteers can contact Jim Evers at jimevers@usc.salvationarmy.org or at 764-0962, or sign up online at ringbels.org.

    Read to children

    Join the United Way and Child Care Aware in supporting the development and learning of young children. Volunteers are needed to spend 30 minutes a week reading to children and guiding related activities using literacy kits（识字工具包）provided by Childcare Aware of Eastern Kansas .A two-hour literacy training will be provided. To ensure continuity for the children in the program, we are asking that volunteers make a six-month commitment. Please contact Shelly at 865-5030, ext.301 or at volunteer@unitedwaydgco.org.

    Garden with a neighbor

    Douglas Country Housing Inc. is looking for volunteers to assist a senior man in need of help with an overgrown garden before winter arrives. One to two hours of your time will make a huge difference in someone's quality of life. No previous gardening experience is required. Please e-mail rsovista@ldcha.org or call 842-1533.

    Feed your friends

    Just food fights hunger in our community. Help Just Food kick off the holiday season by packing. Thanksgiving meal boxes for families in need. Every year Just Food provides Thanksgiving meals to families in Douglas Country that will otherwise go without. Your help is needed for distributing these meals in advance of Thanksgiving. Help is needed on the following days and times:

    9 a. m. –7 p. m. Monday, Nov. 21.

    9 a. m. –7 p. m. Tuesday, Nov. 22.

    The maximum number of volunteers is 15 at a time. To sign up, click here.

    How many times do you check your Facebook page in a day to see whether your latest post has got another “like” or “thumbs(拇指) up”?

    Although you might be embarrassed to admit how many times you do this, don't worry—psychological findings have shown it's completely normal. In fact, the pleasure we derive from receiving a “like” is equal to that of eating chocolate or winning money, and we can't help wanting more. According to the findings, which observed 32 teens aged between 13 and 18, the feedback circuit (反馈回路) in the teens' brains is particularly sensitive, and the “social” and “visual” parts of their brains were active when they received “likes” on the social network. The research also showed that though the thumbs up might come from complete strangers, the good they derive from them worked all the same.

    So, does it mean we should try our best to win as many thumbs up as possible? Not necessarily so if we know the reasons behind our desire for attention. In “why do people long for attention” by M. Farouk Radwan, he explained several cases in which people naturally longed for attention. Radwan said people who were an only child, who were used to being the center of attention in their house, may try to copy these conditions. Feeling “overlooked and unappreciated” might also lead you to long for attention. Other times, the state of being jealous, or wanting to cover your mistakes may also contribute to such longings.

    In fact, too much desire for attention can create anxiety, and in turn ruin your happiness even when you get it. So what can we do about it? The answer is quite simple. “If people could adopt goals not focused on their own self-esteem（自尊）but on something larger than their self, such as what they can create or contribute to others, they would be less sensitive to some of the negative effects of pursuing self-esteem,” wrote psychology professor Jennifer Crocker.

    So perhaps the answer to our addiction to “likes” is simply to focus on something larger than ourselves—a hard, but a worthy one.

Nobody likes an old idiot(傻子).Developing a sense of humor is part of becoming a mature,emotionally healthy individual.Laughter is good for the soul,which builds friendships and relieves stress.It serves as the glue for social situations and as an ice-breaker for sadness and boredom.If you've ever been told to "lighten up" or "chill out",you should save the blue attitude for serious situations and develop your sense of humor.

Forgive the accident.A sudden fall is humorous not because we like to see people fall,but because it surprises us.From a spilled water glass in a meeting to Aunt Rae's teeth coming off in the Thanksgiving Day,the embarrassment of accidents can be relieved by humor and a helping hand.After making sure that nobody is hurt,forgive accidents with a chuckle(咯咯地笑) rather than a scolding.

Look for the unexpected.The kid who used to look at you with his eyes closed during a test had the idea.Parents who serve green eggs and ham to their children on graduation day get the idea.Unexpected action lightens the atmosphere and relaxes people.

Learn to laugh with your kids.Most of what children say and do is funny.Help them learn that accidents are sometimes funny and sometimes occasions for joining in and helping another human being.By sharing laughs and attempting to explain humor,you develop your sense of humor,as well as help kids develop their own sense of humor.