2 . Exploring China is not easy even for experienced travelers, but the history instructor Jessica Gerard from Ozarks Technical Community College (OTC) knows from experience the trip is worth it. Since 2008, she’s led five groups of students across China to study its culture and history.

Gerard often reminds interested students that the trip is not a vacation—it’s an academic (学术的) course. “Anyone interested in the trip must take an online course about the history of China before they can go,” she said. “And, most importantly, students continue to learn while in China. They’re expected to listen to guides, keep a diary and write about their experiences afterward.”

OTC student Ross Weis believed his experiences in China easily transcended (超越) anything he could have learned in the classroom. In fact, it was his long-held interest in China that led him to ask about the trip after seeing a poster in the OTC library. “I’ve always been drawn to China and its rich culture and history,” Weis said. “My dad studied history in college, and I suppose that has some influence on me.”

Of all the cities and historical sites Weis visited, he said nothing could top his experience at the Great Wall. “I’d read about the Great Wall and seen it on TV, but it is so different to go there and actually experience it,” he said. “It wasn’t as worn as I had expected it to be. That was pretty cool.”

Every OTC group Gerard has taken to China has been led by her trusty tourist agent, Jim Lieu. Gerard plans her trips directly through Lieu, who keeps travel costs down for students. “Lieu and I have an excellent relationship with one another. He always knows what I want for my students, and I know what he can do,” said Gerard. “He sincerely believes that in order to build stronger communities and a better world, people around the world should get to know each other through travel.”

3 . Being healthy is important. Often, we’re crazy about articles in health magazines talking about the latest popular diets, or advertisements that offer cures (疗法) for fatness that are often too good to be true. One of the latest crazy phenomena (现象) is intermittent fasting (间歇性禁食).     1    

There are different ways of intermittent fasting.     2     Another common way is choosing a diet that sees people only eating during a limited part of the day, for example, over eight hours.

    3     A study suggests intermittent fasting may help control blood sugar and reduce the possibility of suffering related disease. Other studies have shown intermittent fasting may help slow the ageing process, support brain function, lose weight, etc.

Some people try intermittent fasting for weight management, and others use the method to deal with some conditions such as high cholesterol or arthritis.     4     Fasting might not suit those who are underweight or with a long-term medical condition. Fasting may cause some people to experience symptoms (症状) such as headaches or make them easily suffer from overeating after a reduced calorie intake (热量摄入) day.

As with many diets, it’s always wise to speak to your doctor or weight-loss professional before changing your eating habits. And, at the end of the day, it could just come down to what lifestyle choice suits you.     5     If not, your health may suffer.

4 . Taking exercise in a crowded, noisy gym will improve your muscle but may not make much difference in your stress level. By contrast, hiking improves not only your physical fitness level, but your mental health as well. “I hike with friends every week. Whether I am wandering down a flat path along a river or climbing a rock y mountain in the wilderness, hiking can be beneficial to me because it exposes (使接触) me to outdoor scenes such as mountain s and rivers, which can always offer me good ideas about paintings and music,” Marry Copper, a hiker said.

Experts agree that hiking reduces stress. According to the Anxiety Disorders Association of America (ADAA), hiking increases the body’s production of endorphins, a type of chemical that improves mood (情绪). Endorphins also help you sleep more soundly, which will lower your stress level. However, not all scientists agree that hiking raises your endorphin level. Instead, some researchers believe that hiking causes the release of the chemical norepinephrine, which helps make you less excited or upset.

The controversy (争议) is ongoing, but it is clear that however it happens, hiking is useful when you are feeling anxious. Hiking can also help improve your confidence. Walking down a path is a repetitive motion, which can lead your brain into relaxing; you may “zone out” to the point where you won’t be thinking about anything in particular. Being outside in the open air may also help you exercise better because most people do indoors; getting out from under a roof can lift your spirits.

Hiking may improve your mood more than a gym workout will, but your risks are also greater. People sometimes try to make their own way rather than stick to established paths. They are proud to say they like to have an adventure. However, people who try to do something new could be attacked by wildlife and get hurt and lost. So stick to the known roads and bring a cellphone with you, and always tell someone where and when you are going hiking, even if you have a partner going with you.

6 . This is the last Christmas that Faye and Matthew have spent in their house, which has already been sold. Faye and Matthew Gooding and their five young sons appear to have perfect lives. For the couple themselves, however, this “materially perfect world” was lacking in something—so now they are giving up all their possessions to travel around the world with their children. Most of their belongings have been given to their neighbors. Faye said, “It is a relief to get rid of so many possessions. Thankfully, our parents understand and support us.”

“I hesitated for a while because some friends think Faye and I are mad to give up so much. When we told the older boys, they were so excited that they were going to have so much time as a family. It made me realize the amount of toys or material possessions can’t replace time spent with our children. They’ve had to give away so many toys, bikes and books. My wife Faye was so determined to keep to our plan,” said Matthew.

They will leave this month and plan to start their travels in Sweden where they have friends. Faye said, “My older boys plot where we go next but we hope to see Europe and over two years travel as far as Japan, America, Bali and Thailand. We don’t plan to hire any tour guides. We just depend on a compass and local people to move in the right direction.”

Faye, who posts on Instagram as a mother of five boys, added, “It is a risk because we are giving up so much. I, however, even plan to quit my job after the travel. We can’t wait to spend more time with our sons without the stresses of everyday routines. We don’t know what will happen, but we do know if we didn’t do this we would always regret it.”

7 . Many high school students look forward to volunteering abroad. Here are some programs that such students can consider.

Spring Break Voluntary Service

Through this program, you’ll volunteer to build schools and community centers in the Dominican Republic, and help with reforestation (重新造林) or water purification (净化) projects. You’ll also have the chance to spend some free time on beaches, and explore freshwater lakes and underwater caves. This eight-day program costs $1,899.

Tanzania Expedition

Raleigh International’s Tanzania Expedition includes an adventurous hike in the Southern Highlands, through which you can help out with some environmental projects, and also pick up wildness survival skills. Except for these, volunteer work includes planting trees, improving access to clean water, and helping with hygiene (卫生) awareness events. This expedition lasts five, seven, or ten weeks, starting at $2,595.

Volunteer in Sri Lanka

Plan My Gap Year (PMGY) is offering a Sri Lanka volunteering experience to travelers aged 16 and 17. For two weeks, you’ll explore and volunteer, with activities including visiting an elephant center, watching animals at Yala National Park, relaxing on the beach and volunteering for different projects which mainly focus on English teaching, elephants, and sea turtles. The cost starts at $1,599.

Volunteer in Morocco

Another volunteer opportunity perfect for teens is the Morocco program provided by Cross-Cultural Solutions, where you will be able to travel across this beautiful country for two or four weeks and help with education, health, technology, or sports leadership activities. The cost (including housing and meals, in-country transport handbooks, and more) starts at $750, plus a $249 registration fee (注册费).

10 . Workers at the National Galleries of Scotland recently experienced quite a surprise after they X-rayed a painting by Vincent van Gogh. Hidden on the back of the painting Head of a Peasant Woman, which Van Gogh completed in 1885, was a self-portrait (自画像) of the Dutch painter. No one had ever found it.

The hidden self-portrait had been covered by glue and cardboard that had been attached to the back of the painting. “It was absolutely exciting,” Lesley Stevenson, the museum’s worker, said about the discovery. “We weren’t expecting much of the little painting when we performed the scans,” she said. But museum experts quickly changed their expectations when they looked at the X-rays. “We didn’t see much of the peasant woman, but we saw the lead white that Van Gogh used for his face showing up after the X-ray went through the cardboard,” she added.

Van Gogh painted Head of a Peasant Woman as part of a series of works focused on the working-class residents of Nuenen, a small farming community in the southern part of the Netherlands where he lived briefly in the 1880s. The woman in the painting is Gordina de Groot, a farm worker. She wears a white headpiece. In a letter that Van Gogh penned about the series in 1885 to Anton Kerssemakers, a friend, he described his excitement at his working-class subjects. “I’m working with great pleasure these days, for I would rather paint people than paint anything else,” he wrote.

Van Gogh also loved creating self-portraits, producing about 20 paintings of himself by the end of his life while he was living in Paris. Recreating his own image was a cheap way for him to practice portraiture as he didn’t have to spend money hiring models, according to a report.

Art historians at the National Galleries hope that the hidden self-portrait may help us understand the life of the artist. The museum is currently considering how to best remove the unwanted protective materials without harming the painting.