4 . Walking in the city is very different from walking in the park. A small psychology study suggests urban(城市的) environments can slow your step and possibly increase your mental load. A walk through nature, on the other hand, appears to ease your mind and quicken your pace. The findings show that natural settings may potentially reduce cognitive (认知的)tiredness and improve reaction times straight away. The study, which includes two experiments with two different approaches, was conducted among 65 university students in the lab.

The first of the two experiments in the new study focused on people’s way of walking and cognitive load. During this trial, participants were fitted with sensors and a dozen motion control cameras were set up to watch them repeatedly walk down a 15-metre room at their natural speed. The wall opposite them showed an image of either a nature scene or a city scene. After each walk, participants were asked to rate their feelings of discomfort in the visual environment. On the whole, when walking in city settings, people reported more discomfort and they walked at a slower pace, indicating a higher cognitive load.

The second experiment dug into some of the higher-level cognitive processes that might be at play. In the trial, participants were asked to distinguish between basic visual shapes on the computer while also in the presence of a natural or urban image(the same ones from the first experiment). Measuring reaction times in both natural and urban settings, the team found results to support their idea. In urban environments, participants were slower in distinguishing between simple shapes. The authors think this is because urban environments are more distracting(令人分心的) for our brains and take longer to process, but more research is needed to prove that idea.

5 . A new study in the journal of Tourism Analysis shows frequent travelers are happier with their lives than people who don’t travel at all.

Chun-Chu Chen, an assistant professor at Washington State University, conducted a survey to find out why some individuals travel more frequently than others and whether or not travel and tourism experiences have a lasting effect on happiness and wellness.

The results of his analysis show individuals who pay more attention to tourism-related information and frequently discuss their travel plans with friends are more likely to go on regular vacations than those who aren’t constantly thinking about their next trip. Additionally, participants in the survey who reported regularly traveling at least 75 miles away from home also reported being about 7% happier when asked about their overall well-being than those who reported traveling very rarely or not at all.

“While things like work, family life and friends play a bigger role in overall reports of well-being. The accumulation (积累) of travel experiences’ does appear to have a small yet noticeable effect on self-reported life satisfaction,” Chen said.

Participants in the study were asked about the importance of travel in their lives, how much time they spent looking into and planning future vacations, and how many trips they went on over a year. They were also asked about their life satisfaction. Out of the 500 survey participants, a little over half reported going on more than four pleasurable trips a year. Only 7% of respondents did not take any vacations.

As travel restrictions (限制) due to COVID-19 pandemic begin to relax in the future, the research could have important effects on both tourists and the tourism industry. Based on the results of the study, Chen said travel companies, resorts and even airlines, could launch social media campaigns, such as creating signs about the scientific benefits of vacation, to spark people’s interest in discussing their opinions about travel.

6 . It is generally assumed that one can’t have too many friends. But it seems that there is a natural limit to the number of people we stay in touch with. A study found that when we make new friends, by starting a new job or going to university, we downgrade or even drop old ones. And while the friends may change, the number stays almost the same.

Oxford University researcher Felix Reed-Tsochas asked 24 students in the final months of school to list all their friends and relatives and say how close to them they were. The pupils filled in the questionnaire (问卷) twice more after starting work or going to university. They were also given free mobile phones and agreed that researchers could use their bills to work out who they called, when and for how long.

Putting the two pieces of information together showed, unsurprisingly, that most people have a small circle of close friends, who they spend most of their time talking to. This inner circle is surrounded by group after group of ever more distant friends. As the volunteers’ lives changed, this overall pattern, including the number of best friends, remained almost the same, meaning that some close friends from childhood were dropped or downgraded as new friendships were built.

Dr Reed-Tsochas said, “Maybe my best friend is no longer the same person but the amount of time I allocate (分配) to my best friend is still the same.” He added that this finding suggests that even with the coming of modern technology we are only capable of forming a limited number of true friendships.

Chester University researcher Dr Sam Roberts said, “Our results are likely to reflect limitations in the ability of humans to keep emotionally close relationships both because of limited time and because the emotional capital (情绪资本) that individuals can allocate between family members and friends is limited.”

7 . Parents often believe that they have a good relationship with their teenagers. But last summer, Joanna and Henry noticed a change in their older son. Suddenly he seemed to be talking far more to his friends than to his parents. “The door to his room is always shut,” Joanna noted.

Tina and Mark noticed similar changes in their 14-year-old daughter. “She used to cuddle up (依偎) against me on the sofa and talk,” said Mark. “Now we joke that she does this only when she wants something. Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is understanding which time is which.”

Before age 11, children like to tell their parents what’s on their mind. “In fact, parents are first on the list,” said Michael Riera, author of Uncommon Sense for Parents with Teenagers. “This completely changes during the teen years,” Riera explained. “They talk to their friends first, then maybe their teachers, and their parents last.”

Parents who know what’s going on in their teenagers’ lives are in the best position to help them. To break down the wall of silence, parents should create chances to understand what their children want to say, and try to find ways to talk and write to them. And they must give their children a mental (思想的) break, for children also need freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with their children is a better way to know them.

8 . By now, most people know they should be eating more vegetables. But are there ways to get more from the vegetables you already eat? A research shows that when it comes to vegetables, it’s not only how much we eat, but also how we prepare them, that decides the vitamins and other nutrients that enter our body.

Many studies show that people who eat lots of vegetables have less heart disease, and eye problems and even cancer. But raw vegetables are not always best. The researchers found that 198 Germans who eat raw food were short of lycopene, the matter found in tomatoes and other red vegetables. “There is an idea that raw foods are always going to be better,” says Steven K. Clinton, a professor at Ohi o State University. “For fruits and vegetables, sometimes a little bit of cooking can be helpful.”

A number of factors decide how the vegetables do good to people’s health before they reach the table, including where and how they were grown and stored before being bought. No single cooking way is best. Some nutrients are easily lost in cooking if they are cooked in different ways.

Vitamins C and B are often lost. In January, another report said that boiling was better for carrots than frying or serving them raw. Frying was the worst way to cook.

What cooked with the vegetables can also be important? When the vegetables were cooked with fat, the diners can get more nutrients. Fat can also make the taste of vegetables better, meaning that people will eat more of them. Putting on some other things that make it taste better—a little salt—can make the food taste better.

10 . “Just sign here, sir,” the deliveryman said as he handed Oscar Reyna a package.

The package consisted of a long, narrow box ____ wrapped in brown paper. ____ the box, Oscar saw an umbrella inside—a very old one with a beautifully carved wooden handle. ____ he had not seen it in more than 20 years, he recognised it immediately.

Oscar was 16 when he first saw the____ umbrella. He had gone to a concert with his grandparents. As they were leaving, he noticed an umbrella on an empty seat. Impressed by its beauty, Oscar felt a strong desire to find its ____.

Oscar ____ the manager to look in the record of advance ticket sales. Just as he thought, a name matched the seat ____ Oscar had found the umbrella. The name was Mrs. Katie O’Brien.

Oscar talked his grandparents into going by Mrs. O’Brien’s house on their way home. He rang the bell, the door opened, and an elderly woman appeared. “May I ____ you?” she asked.

“I’d like to return it if it’s yours,” Oscar said, ____ the umbrella as if presenting a gift that had long been wished for.

“Why, yes! It’s mine,” replied Mrs. O’Brien with a ____ smile and shining eyes. “It was given to me by my father years ago. Thank you so much for returning it. May I offer you a reward for your ____?”

“No, ma’am,” he said. “My grandmother says that a good deed is its own reward.”

“Well, that’s ____ what my father used to say. What is your name, young man?”

Years later Oscar was staring at the finely carved handle of the umbrella as he remembered Mrs. O’Brien. It was in perfect condition, considering how ____ it was. Why had it arrived here today?

As if ____, a note fell from the paper. It read: Mrs. O’Brien wanted you to accept this umbrella as a present for a kind, ____ gesture long ago.