1 . Instagram has launched (发布) a machine learning technology to its app that better identifies self-harm and suicide (自杀) content in the UK after tragic death of a 14-year-old schoolgirl Molly Russell, who viewed Instagram content connected to anxiety, depression, self-harm and suicide before ending her own life in November 2017.

Molly’s family later found she had been viewing content on social media, particularly pictures on Instagram, linked to anxiety, depression, self-harm and suicide, which her father, Ian Russell, believed to “help to kill her.” Ian has demanded that web companies should take more responsibility for filtering (过滤) harmful content from the Internet, which may possibly contribute to more young people’s deaths.

Concerns have been raised about self-harm and suicide content online, especially how platforms deal with such content and its impact on certain users, young people in particular. Social media platforms are now increasingly being pressured to develop technology to help remove harmful content as quickly as possible, rather than waiting for users to report it.

Now, the new tool from Instagram automatically searches for suicide-related images and words on the platform. It then makes the content less visible (可见的) in the app or, in some cases, removes it completely after 24 hours if the machine learning decides it breaks the app’s safety rules.

Instagram boss Adam Mosseri said, “Our technology finds posts that may include suicide or self-harm content and sends them to human reviewers to make the final decision and take the right action.” Between April and June this year, around 90 percent of such kind of harmful content on Instagram was found by its own technology before any real user reported it to the platform. “But our goal is to get that number as close as we possibly can to 100 percent,” Mosseri added. “And I hope this could in some way help avoid tragic deaths like Molly Russell’s.”

2 . What do you think of 80s pop music? Do the names George Michael, Madonna and Michael Jackson sound familiar? Well, these are just some of the names that were well-known in the music scene of the 80s and early 90s. The 80s pop music scene was an important step to the popularity (普及) of present-day music. A new wave in the music scene was introduced, which made such music styles as punk rock, rap music and the MTV popular. Although it was an end to the old 60s and 70s styles, it was also the beginning of something big. The popularity of music videos meant that artists now replaced their guitar-based music with visual displays. A new wave of artists came on the scene and the entire industry developed quickly.

The most famous 80s pop music video is Michael Jackson’s Thriller. Introduced in 1982, few people can forget the video not only because of its never-be-foreseen images, but also because of the popularity it received. Think of how 80s pop music changed the lives of people who grew up in the 80s. Ask a young man today to tell you the names of the “New Kids on the Block” and he will start talking about the neighbor kids who just moved in. These are not the answers you might have heard in the 80s. Though today’s young men do not recognize how cool 80s pop music was, most people will always remember it for what it was and these are happy memories they will always love.

Some of the 80s pop music legends (传奇人物) include Madonna, U2, AeroSmith and of course the King of Pop Michael Jackson. Let’s not forget Prince, Tina Turner, Phil Collins and Motown’s Lionel Ritchie. Some of these musicians played music that has stood the test of time. Undoubtedly, the 80s pop music scene will live on for many more years to come.

3 . When it comes to sitting properly, we all know the correct way even if we don' t do it to the letter. No crossed legs, bottoms touching the back of the chair and feet on the ground. But even if you' re doing it right, sitting for long periods is shockingly bad for you. It has been described as the new smoking, linked to heart disease and even cancer. There is no doubt we should all try to do less of it. But perhaps we could also do it better.

A classic survey, published in 1953, described 100 different sitting postures adopted by 480 cultures around the world. Among the most common were sitting cross-legged, kneeling and the deep squat (深蹲), with feet flat on the ground and bottoms resting on or just above it. Even in Western cultures, these are preferred sitting positions among young children. But Westerners tend to prefer chair use from an early age, insisting children sit on seats in school.

One big problem with this desire for chairs is that they make sitting so, well, sedentary (久坐不动的). Consider the Hadza, a group of hunter-gatherer people in Tanzania. They spend around 9 hours a day sitting. However, they squat and sit on the ground in various positions, and this involves high levels of muscle activity. The supportive nature of chairs, with their high backs and armrests, removes this effort perhaps the reason that people love them.

So what' s the best way to sit? Josette Bettany-SaItikov at Teesside University, UK has found that kneeling can help keep the spine in a better position as does squatting. We might also take inspiration from traditional cultures like the Hadza. "Use a variety of postures and preferably not just still postures but some which allow movement," says Bettany-Saltikov.

Bettany-Saltikov believes that we should be rethinking what it means to do a desk job. "We still need to design workplaces that enable people to be productive while being lightly active, like with under-table cycling or walking desks," she says. For now, if your job is sedentary, don' t forget to stand up regularly and move around.

5 . Technology use seems to be the new wave of addiction hitting people of all ages. Its extreme use can be compared to the use of drugs, which is called Plug-in Heroin.

The next time you’re in a crowded public place, look at the people around you. It’s hard to find someone who isn’t glued to the tiny screen, fingers moving at lightning speeds, texting their friends, e-mailing coworkers or listening to music. It may seem ridiculous that someone is that addicted to such a small object. I’ve seen people who seem to be at their wits’ end if their phone or iPad has been taken away, lost or left at home.

Some people may ask, “What’s wrong with technology use? It’s a way for people to communicate.” While this is true, the overuse of technology isn’t always appropriate in certain settings. Schools are becoming stricter about the use of cell phones, iPods and other electronics in classrooms. Various workplaces have signs hanging on their walls warning employees that “Cell phone use is not permitted” or “Cell phones are forbidden”. On the first warning you will be sent home, and on the second warning you will be fired.

Electronics may be a way for people to communicate and stay in touch with each other, but the disadvantages may outweigh the benefits. People are losing the ability to hold face-to-face conversations with others. However, it’s hard to avoid electronics in this day and age because almost everything is turning into an electronic format. Books, originally meant for paper design, are now being transferred to electronic forms. Photo albums, and even yearbooks, can now be viewed via the Internet. With this growing trend, future generations are bound to become even more addicted to technology.

Is there a cure for electronic addiction? Simply turning electronics off for an hour or two a day may help to an extent, but it will not completely rid electronic addiction. There only seems to be one cure left, and it may be the hardest: self control.

6 . Over the years, you've probably known a good number of people-some for only a short period and others for a much longer time. If you spend a moment thinking back on the people who have meant the very most to you, selflessness will be the same thing they share. There might have been a person who really believed in you. Someone taught you something important. Someone cared for you in his or her own way. Someone has simply always remained your friend.

Many years ago, I traveled through the beautiful, history-rich country of Greece. With only a small backpack, I stayed at youth hotels, visiting city after city. One day, a shoulder strap on my backpack broke. I didn't speak any Greek and the owner didn't speak any English. I went to the front desk of my hotel and tried to ask him if there might be a shop nearby where I could have it repaired. He was clearly very busy. But he asked someone to watch over the front desk and then signed to me to follow him. We walked together for a few blocks,arriving at a little shoe repair shop. Within ten minutes, my backpack was repaired, and then the hotel owner insisted on paying for it!

I was shocked by this powerful, unexpected kindness.   More than any other thing, it's what I recall most often when I think about my trip to Greece. Sometimes, you may not have even realized how much your selflessness toward someone has mattered. As the saying goes, "To the world you may be one person, but to one person you may be the world."

7 . Happiness is not a warm phone, according to a new study exploring the link between young life satisfaction and screen time. The study was led by professor of psychology Jean M. Twenge at San Diego State University (SDSU).

To research this link, Twenge, along with colleagues Gabrielle Martin at SDSU and W. Keith Campbell at the University of Georgia, dealt with data from the Monitoring the Future (MtF) study, a nationally representative survey of more than a million U. S. 8th-, 10th-, and 12th-graders. The survey asked students questions about how often they spent time on their Phones, tablets and computers, as well as questions about their face-to-face social interactions and their overall happiness.

On average found that teens who spent more time in front of screen devices — playing computer games, using social media, texting and video chatting — were less happy than those who invested more time in non-screen activities like sports, reading newspapers and magazines, and face-to-face social interactions.

"The key to digital media use and happiness is limited use," Twenge said. "Aim to spend no more than two hours a day on digital media, and try to increase the amount of time you spend seeing friends face-to-face and exercising — two activities reliably linked to greater happiness."

Looking at historical trends from the same age groups since the 1990s, it's easy to find that the increase of screen devices over time happened at the same time as a general drop-off in reported happiness in U. S. teens. Specifically, young peopled life satisfaction and happiness declined sharply after 2012. That's the year when the percentage of Americans who owned a smartphone rose above 50 percent. By far the largest change in teens' lives between 2012 and 2016 was the increase in the amount of time they spent on digital media, and the following decline in in-person social activities and sleep.

8 . If you want to do your kids a favor, consider having them walk to school. Walking to school provides many benefits – improving academic performance, reducing anxiety, boosting spirits, better sleep, a sense of independence, having an opportunity to familiarize oneself with a neighborhood, to notice small details, to feel a sense of wonder at the surroundings. The list goes on.

Parental fears still exist, however. Parents are terrified of cars, of injury, of harsh weather, of encounters with strangers and wild animals. These fears prevent parents from letting their kids do something that's actually enormously beneficial to them, despite the fact that removing an opportunity to be active contributes to an increase in childhood obesity, which can have a greater negative impact on a child's life than the risk of being injured due to being active.

How do we go from being a society that does not encourage its children to walk independently to being one that does? Parents must face their own discomfort with letting go. Brussoni, an expert who researches children's outdoor and risky play, said "We want to move parents from focusing solely on protecting their child to building trust in their child’s abilities and strategies to support their child’s skills in navigating the streetscape."

Schools can play a role by encouraging children to walk to school. Brussoni offers additional suggestions: "They should promote a culture that walking to school is the norm, help educate parents on why this is important, and consider closing the streets around the school to cars before and after school."

Parents might do well to put themselves in their children's shoes. As adults, we know how good a morning walk feels to start off a day or to end one. Walking energizes us and cheers us up, and it can do the same for children. As we go through this pandemic that has shaken up all of our lives, it's a good time to practice new routines and establish new habits. Walking to school is a great place to start.

9 . Doug Falter, an American photographer, returned home, teary-eyed and exhausted. He pouted online that evening, "I lost my baby." That "baby" referred to a surfboard that had been custom-made for him. Hours earlier, a big wave had separated Falter from this prized possession.

Months passed with no sign of the surfboard. Falter saved money to buy a new surfboard for $ 1,500. But Falter never completely forgot the surfboard, which - six months later and more than 5,000 miles away from where it disappeared-floated to the southern Philippines.The local fisherman who found it didn't have much use of his unusual catch of the day, so he sold the board for s 40 to Giovanne Branzuela, an elementary school teacher. Branzuela hoped to learn to surf and one day share the skill with his students,who regularly accompany him on beach clean-ups.

The once-blue board had faded to a pale straw color during its journey, but its distinctive markings were still there: two elephants, one at either end. Underneath the elephants were the words "Doug Falter Surfboard".

Branzuela couldn't believe it on realizing how far the surfboard had traveled. He reached Falter online and sent him a photo of the surfboard. Falter was shocked to learn that his "baby"had drifted(漂流) across the world's largest ocean and survived. He was overjoyed.

But the story was far from over. Falter wanted to thank Branzuela with some surfing supplies for his kind act, but the teacher asked for school supplies instead, such as backpacks for his students and materials to help them learn English.

Falter said it made him raise money for the kids. So far, he has collected $ 2,500,which he has used to buy and ship maps, puzzles, classroom posters, textbooks, and workbooks.