Sometimes the toughest thing about feelings is sharing them with others. Sharing your feelings helps you whether your feelings are wonderful or terrible. Sharing also helps you to get closer to people you care about and who care about you. But how?

    You can't tell your friends what's inside your backpack if you don't know what's in there yourself. Feelings are the same way. Before you can share them with anyone, you have to figure out what feelings you have.

    Making a list of your feelings can help. You can do this in your mind or by writing it out or even by drawing pictures. Is something bothering you? Does it make you frustrated or terrified? Do you feel this emotion only once in a while or much of the time?

    The way a person feels inside is important. If you keep feelings locked inside, it can even make you feel sick! But if you talk with someone who cares for you, you will almost always start to feel better. It doesn't mean your problems and worries magically disappear, but at least someone else knows what's bothering you and can help you find solutions.

    Your mom and dad want t0 know if you have problems and what's happening in your life. But what if a kid doesn't want to talk with parents? Then find another trusted adult, like a relative or a teacher at school. Maybe this person can help you talk with your parents about your problem or concern.

    Once you know who you can talk with, you'll want to pick a time and place to talk. You can talk publicly in your family. But some kids are more private than others and they will feel shy about sharing their feelings. Then find a quiet place or write it down on a piece of paper. A kid doesn't have to share every feeling he or she has.

    There are two types of people in the world. Although they have equal degree of health and wealth and other comforts of life, one becomes happy, the other becomes unhappy. This arises from the different ways in which they consider things, persons, events and the resulting effects upon their minds.

    People who are to be happy fix their attention on the convenience of things. The pleasant parts of conversation, the well prepared dishes, the goodness of the wine, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the opposite things. Therefore, they are continually dissatisfied. By their remarks, they sour the pleasure of society, offend （hurt）many people, and make themselves disagreeable everywhere. If this turn of mind was founded in nature, such unhappy persons would be the more to be pitied. The intention of criticizing and being disliked is perhaps taken up by imitation. It grows into a habit, unknown to its possessors. The habit may be strong , but it may be cured when those who have it realize its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit.

    Although in fact it is chiefly an act of the imagination, it has serious results in life since it brings on deep sorrow and bad luck. Those people offend many others; nobody loves them, and no one treats them with more than the most common politeness and respect. This frequently puts them in bad temper and draws them into arguments. If they aim at getting some advantages in social position or fortune, nobody wishes them success. Nor will anyone start a step or speak a word to favor their hopes. If they bring on themselves public objections, no one will defend or excuse them, and many will join to criticize their wrongdoings. These should change this bad habit and be pleased with what is pleasing, without worrying needlessly about themselves and others. If they do not, it will be good for others to avoid any contact （接触）with them. Otherwise, it can be disagreeable and sometimes very inconvenient, especially when one becomes mixed up in their quarrels.

    There are campus museums all over China that offer various collections and make for eye-opening visits.

    Beijing Air and Space Museum at Beihang University

    Admission: free

    Opening hours: Tuesday and Saturday, 9:00 am -12:00 pm

    Highlights: Included among the more than 300 historic aircraft and space artifacts are one of the two Northrop P - 61 Black Widows in the world and China's first light airliner, Beijing 1.

    Fudan University Museum

    Admission: free

    Opening hours: Tuesday to Friday, 9:00 am - 11:30 am and 1:30 pm - 4:30 pm

Highlights: A unique collection of native artifacts from the Gaoshan aborigines in Taiwan. Some of them, such as pearl vests, are rarely seen even in Taiwan.

    China Ichthyic Culture Museum at Shanghai Ocean University

    Admission: 10 yuan

    Opening hours: Monday to Friday, 9:00 am - 11:30 am and 1:30 pm - 4:00 pm

    Highlights: In this collection of more than 40,000 specimens of about 3,000 ocean-dwelling species, the most eye-catching one is an 18. 4-meter-long sperm whale skeleton.

    Yifu Museum of China University of Geosciences

    Admission: 40 yuan; half price for students

    Opening hours: Monday to Friday, 8:30 am - 12:00 pm and 2:30 pm - 5:00 pm; weekends and holidays, 9:00 am - 4:30 pm

    Highlights: It houses a collection of more than 30,000 mineral and rock specimens, more than 2,000 of which are rare ones like the museum's well-known dinosaur fossils.

    China Academy Museum at Hunan University

    Admission: 50 yuan

    Opening hours: Monday to Sunday, 8: 00 am - 6: 30 pm in summer and 8: 30 am - 6:00 pm in winter

    Highlights: China's only museum to feature the history of academies and cultural education in the country.

    Scientists recently discovered three tyrannosaur (霸王龙) trackways in Canada. The trackways suggest the meat eaters traveled and hunted in groups. The 70-million-year- old footprints are the first tyrannosaur trackways ever found.

    Tyrannosaurs were a type of meat-eating dinosaur that included the strong Tyrannosaurus rex and Albertosaurus. “Groups of tyrannosaurs may have stuck together as a group to increase their chances of bringing down animals and individually surviving,” study coauthor Richard McCrea says. He works for Canada's Peace Region Paleontology Research Centre. It's believed that tyrannosaurs were solitary creatures. The newly discovered trackways could change the way scientists look at these frightening beasts.

    Trackways can uncover a lot about the social behavior of a species. Unfortunately, very few tyrannosaur footprints have ever been found, and until recently, the only ones known were single prints discovered in Mongolia, the western U.S., and western Canada. But in October 2011, a hunting guide named Aaron Fredlund found two tyrannosaur track marks near Tumbler Ridge, an area in the foothills of the Canadian Rockies. Over the next year, McCrea and his team searched the site and found the remaining trackways.

    The footprints are at about the same depth, which suggests the tyrannosaurs moved through the area at the same time. Impressions of the dinosaurs' rough skin are even visible in the prints. The prints are also in near-perfect condition. That's because the ground had a high clay (黏土 ) content when the dinosaurs walked through the area. The land was later covered by a thick layer of volcanic ash, which kept the marks intact (完整). "This is the most ideal situation you could ask for," McCrea says.

    Researchers aren't sure of the exact species of tyrannosaur that left the prints. But the historic findings show a great deal about how the beasts moved and behaved. “We have extremely convincing evidence that tyrannosaurs traveled in groups,” says McCrea. "This is probably the most important evidence to come out to date on that topic."

    Women may have good reason to drink coffee as much as they like. According to recent research, women who drank three or more cups of coffee a day were 30 percent less likely to have memory decline at age 65 than whose who drank one cup or less daily. And the benefit increased with age. Women over age 80 who drank three or more cups of coffee a day were about 70 percent less likely to have memory decline than those who drank one cup or less, the researchers said.

    Caffeinated tea had the same effect in the women, the study found, although more was needed to get the same caffeine boost. "Count roughly two cups of tea for a cup of coffee," said study leader Karen Ritchie of INSERM, the French National Institute for Health and Medical Research.

    But the researchers didn't find a similarly protective effect in men, although other studies have found a benefit to males.

    How might caffeine help ward off cognitive decline? "It is a cognitive stimulant." said Ritchie. "It also helps to reduce levels of the protein called beta amyloid in the brain" she said, "whose accumulation is responsible for Alzheimer's disease but which also occurs in normal aging."

    Ritchie said she wasn't sure why men in the study didn't benefit from caffeine. "Our hypothesis is that either women metabolize caffeine differently than men, or there may be an interaction of the caffeine with the sex hormones," she said.

    The French study confirms previous research, said William Scott, professor of medicine at the University of Miami Miller School of Medicine, who has researched caffeine's beneficial effects against Parkinson's disease, also a neurodegenerative disorder.

    As for caffeine only protecting women, Scott noted that just 2,800 of the 7,000 study participants were men, and the results might have differed if more men were included.

    A study published in February in the European Journal of Clinical Nutrition looked at 676 healthy men and found that regular coffee drinkers had a lower rate of cognitive decline over a 10-year follow-up than those who didn't drink coffee. Those who drank three cups daily had the least signs of decline.

    Both Scott and Ritchie agreed that more study is needed. Ritchie's research will next look at the relationship between caffeine and Alzheimer's.

Growing evidence shows that dancing can boost brain health and help manage neurocognitive (神经认知的) disorders. So what is it about dance that's different from other regular exercises? 

Helena Blumen, a cognitive (认知的) scientist at Albert Einstein College of Medicine, says the complex (复杂的) mental multitasking that dance requires involves various parts of the brain at the same time. Basically, dancing requires more brain power than simpler repetitive (重复的) exercises. 

While scientists are still learning how the mechanisms of dancing work in the brain, a clearer picture is beginning to appear. Researchers at Otto von Guericke University in Magdeburg, Germany, did MRI scans of older adults who had participated in one of two programs over a six -month period. One group practiced dance and the other did a traditional exercise program with cycling and strength training. While both groups improved their level of physical fitness, the dancers grew more white and gray matter in the parts of the brain responsible for cognitive processes. Both white and gray matter typically decline as we get older, making communication in the brain slow. 

Imagine your brain is a city with loads of roads. The researchers assume the changes brought by dancing contribute to brain plasticity, which is like the city's ability to build new roads, repair old ones or even change the direction of traffic based on how often the routes are used and what the city needs. 

In addition to the physical and neurological (神经学的) benefits, dance can also help people accept what their bodies can and can't do. Dawnia Baynes, 44, developed multiple sclerosis (MS) after her body lose all feeling from the chest down. She recently joined an online dance program for people with MS. Not only has it improved her range of motion, it has also helped her overcome her fear of being judged for how she moves. 

"To see other people moving is like I'm moving," she says, "and knowing that I don't have to be professional and super technical in my dancing makes me comfortable with where I am right now."