With unfamiliar environments, a heavier workload (工作量), and social challenges, the change from primary school to high school is difficult.

When 800 new high schoolers graded their feelings of worry on a scale (量表) of one to ten, one quarter said seven or more, suggesting serious stress (压力). Disturbingly, these uneasy youth were the most likely to cut classes, start smoking or even get involved in (卷入) self-harm, according to McGill University researcher Dr. Nancy Heath, who has studied the students for three years.

Luckily, there’s a good cure for your high schooler’s worries — volunteering. Parents are already struggling with over-scheduled kids, but the mental-health benefits of this particular after-school activity are widely recognized. “There’s clear evidence (证据) that doing something for others can help people manage stress,” Heath says. The biggest benefit is making new friends. High school is a social minefield (雷区). Teens struggling to find new friends can feel lonely.

They need a back-up social scene outside the classroom, Heath suggests. “Volunteering and getting involved gives a sense of community and belonging.” Team sports and some hobbies are social, but they can’t match the other benefits of volunteering. Serving food in a soup kitchen or chatting with lonely old people forces a teenager to focus on the needs of others, instead of thinking about their own worries.

We’ve found that, among youth who volunteer through our service programs, 61 percent report feeling increased self-respect. They’re 1.3 times more likely to have a strong sense of self than their peers (同龄人), and are more comfortable adapting to (适应) changes, according to an independent study by research firm Mission Measurement.

This winter, encourage the new high school student in your house to find a cause they’re interested in and get involved. It won’t help them find their locker, but it will ease the stress.

A big eating show, or mukbang in Korean, is an online audiovisual show in which a vlogger consumes large quantities of food while interacting with the audience. These shows originated in South Korea and have become a worldwide trend.

This eating performance has rapidly spread its influence to some Asign countries such as Japan and China where it became popular. In China, mukbang is' called “chibo”, in which mukbangers make their content into short videos and vlogs and upload them onto huge social media platforms like Weibo.

Many hosts of such shows become popular for their ability to eat large amounts of food, But these shows have also received criticism for their waste of food. On Aug 12，CCTV exposed several Chinese hosts who were pretending to eat large amounts of food while on camera, but actually later threw it away.

According to the Food and Agriculture Organization of the United Nations, about a third of the world's food 1.3 billion tons is wasted every year, In China alone, as it was once reported that the amount of food wasted in China was enough to feed 200 million people a year.

In June 2020，the United Nations warned that the world is on the road of the worst food crisis in 50 years.

To discourage this practice, many video and live- streaming platforms, including Douyin, Kuaishou and Bilibili, have removed videos that show food waste.

People in China have realized the need for safeguarding food security and halting food waste. In Shanxi province，local restaurants have been asked to serve half portions to avoid waste. The Wuhan Catering Association proposed that restaurants adopt the“N-1 mode”. For example, a group of 10 diners should only order enough for nine people at first. More food is only brought to the table if required.

In addition, a nationwide “Clear Your Plate” campaign has been launched online. Users of Sina Weibo are encouraged to share photos or videos of empty plates after finishing their meals.

Doing homework can not only help children master the knowledge they have learned, but also can train their abilities of finishing the work alone,planning the time and doing the duties. But some children don’t like to complete the work. Why? There are some reasons.

Some children feel it is very difficult to do their homework, because they can’t understand their teacher clearly, and can’t follow their teacher’s teaching process. Maybe there is something wrong with their intelligence.

But some children’s intelligence is normal. They are even cleverer,but they don’t listen to the teacher carefully. It is hard for them to sit well and pay attention to anything. It needs to carry on the attention centralized（集中注意力）training to help the children.

Some children love their teacher and then they like the subject. Their interest depends on the teacher who teaches them. So every teacher should be helpful and kind. It can make children love you and the subject you teach. So they can do their homework happily.