【推荐2】A medical study has shown that excess (过度的) coffee drinking could cause heart attacks in people who do not metabolize (使新陈代谢) caffeine fast enough.

The study, published recently in the Journal of the American Medical Association, says an enzyme (酶) that metabolizes caffeine in the liver works differently in some people, depending on the make­up of the gene (基因). People who have a slow version (版本) of the enzyme are at a greater risk (风险) of a heart attack when they drink more coffee. The risk had something to do with a person’s age and how many cups of coffee he drinks.

The team from the University of Toronto in Canada studied 4,024 people living in coffee­rich Costa Rica between 1994 and 2004, of whom half suffered non­fatal (非致命的) heart attacks. They found slightly more than half had the slow version of the gene, while the rest had the fast form.

Two to three cups of coffee a day increased the possibilities of a heart attack by 36 percent for those with the slow­acting gene and four or more cups a day lifted it by 64 percent.

But those under 50 who had the fast version of the gene had a lower risk of heart disease, even with four or more cups a day.

Those with the fast­acting gene who drank two to three cups of coffee a day had 22 percent reduced possibilities of having a heart attack, but drinking four or more cups a day only lessened the risk by 1 percent. Scientists recommend limiting coffee consumption (消耗量) to within four cups a day.

【推荐3】Researchers have found that men and women consumed 15 percent more calories when looking at their phones while eating. They also ate more fatty food. The groundbreaking study suggests that staring at a phone screen may distract diners from how much food they are actually eating.

“It may prevent the correct understanding of the brain over the amount of food ingested,”said researchers who filmed 62 volunteers eating alone.

The men and women, aged 18 to 28, were invited to help themselves to a choice of food – ranging from healthy options to soft drinks and chocolate – until they were satisfied. In three trials, the volunteers were recorded eating with no distractions, using a smartphone or reading a magazine.

On average, the volunteers ate 535 calories without the distraction of a smartphone but 591 when using a mobile.

Those in the sample who were classed as overweight ate 616 calories while using their phones. When in possession of their mobiles, the volunteers also consumed 10 percent more fatty foods. They also ate more when reading a magazine.

“Smartphone use during a meal increased calorie and fat intake,” said Márcio Gilberto Zangeronimoa, a lead author of the study – carried out at the Federal University of Lavras in Brazil and University Medical Center Utrecht in the Netherlands.

He added: “Tablets and smart phones have become the main ‘distracters”’during meals, even early in childhood, so it is important to pay attention to how this may impact food choices.”

“A distracter prevents the brain correctly understanding the amount of food ingested.” The study is published in the journal Physiology And Behavior.

【推荐1】The livestreaming and fast delivery industry have attracted so many young people that the manufacturing sector(制造业)is short of manpower. “My advice is to encourage more young people to work in the factories and less in the express delivery industry,” Zhang Xinghai, a deputy to the National People’s Congress, China’s top legislature, said during the ongoing NPC annual session.

Zhang wants more young people to work in the factories so that China’s manufacturing sector continues to develop well.

Whatever job young people do is a matter of choice, but the manufacturing sector is facing a labor shortage, for too many people prefer jobs in other areas.

A survey conducted by the Ministry of Human Resources and Social   Security in the third quarter of 2021 found that of 100 jobs that were facing a manpower shortage, 58 were in the manufacturing sector. By 2025, the shortage in 10 key manufacturing industries could be as high as 30 million.

It is time some strong measures were taken to attract people back to the factories. This can be done by raising the salaries(薪水)of factory workers.

According to a survey in Guangzhou, capital of Guangdong province, the yearly income of express delivery workers in the city is more than 100,000 yuan($15,831). In contrast, the average monthly salary of those doing blue-collar jobs in Guangdong in 2020 was just 7,108 yuan, or about 84,000 yuan a year. That gap surely needs to be reduced.

Besides, the legal rights and interests of those doing blue-collar jobs need to be better protected. Express delivery workers can decide when they want to work, but factory workers have to work whenever the factory demands.

Therefore, the authorities should protect factory workers’ rights to weekends, 8-hour working schedules and paid leave.

Also, the promotion(晋升)and salary growth structure of factory workers must be clearly planned. In a word, to attract young people back to the factories, it is necessary to make blue-collar jobs more attractive.

【推荐3】Tourism wasn’t as important as it is today. In the past, only people with a good deal of money could travel on holidays to your countries. More people travel today than in the past because there is growing middle class in many parts of the world; that is to say, people now have more money for travel. Special plane fares for tourists make travel less expensive and more attractive than ever before .One person   doesn’t travel for the same reason as another. But most people enjoy seeing countries that are different from their own. They also like to meet new people and to taste new food.

Tourism causes many changes in a country and in people’s lives. People build new hotels and restaurants and train native men and women as guides to show visitors interesting places.   There’re   new   nightclubs   and   other   amusements. International tourism is clearly a big business.