【推荐1】A car needs gas to run and your body also needs food to work for you. Eating the right kind of food is very important. It can help your body grow strong, so take care of what you eat.

There are four main food groups altogether. The dairy group has food like milk, cheese and sour milk. The other three groups are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at least one food from all four main groups, with all these food together, you will be given enough energy during the day.

It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school on time. Or you may not have time for a good lunch. It may seem easy to finish your supper with fish and chips all the time, But you will find yourself tired in these days and you can not think quickly.

Watching what you eat will help keep your body healthy and strong. It is also good to take some exercise. It will help you eat more if you take a walk or play games in the open air. Having a good eating habit with some exercise is the key to your health.

【推荐2】More than a quarter of parents use a device to track or monitor their kids’ online activity, finds a survey from Common Sense Media and Survey Monkey. It’s far more than the percentage of teens (15%) who think their parents are tracking or monitoring what they do online. Whether all that snooping (调查) is effective seems unclear. Only 30% of teens who responded to the survey said their parents were “extremely” aware or “very” aware of what they do online. By comparison, 52% of parents believed they were “very” aware of their kids’ web activity.

“There’s a pretty big difference between parents who say they know and what kids say parents know,” said Michael Robb, director of research for Common Sense Media. The online survey was among a national sample of 884 teens and 3,282 parents of teens.

Options for tracking kids’ online activities vary from tools for your router capable of tracking the websites users visit to apps letting you review your child’s smart phone call logs and text messages.

Devorah Heitner, author of the book Screen Wise: Helping Kids Thrive (and Survive) In Their Digital World, suggests mentoring kids about best online practices instead of monitoring. If parents do choose to monitor, they should talk with their kids first. “You have to really ask yourself what you think you’re going to learn by monitoring your kid,” she said, “What’s your plan of action if you see something that concerns you?”

Other findings from the survey: Snapchat is the app that causes the most anxiety for parents. The survey found 29% said the messaging apps make them most nervous, followed by Facebook at 16%.Teens don't like Facebook as much as Snapchat or Instagram. More than three-quarters of teens said they use both messaging apps, but only 49% said they use Facebook, while 42% said they use Twitter.

Robb said Common Sense Media plans to partner with Survey Monkey on future online polls because the pace of technology is so rapid. “These surveys will be a quicker way to take the pulse of parents and teens.”

【推荐3】Hamburgers were first introduced to the United States in the early 20th century, and the first fast-food restaurant chain opened its doors in 1921. However, it was only after World War II that fast food became popular in the whole country.

After designing their hamburger restaurant to make food in a simpler and more effective way,the McDonald brothers reduced the costs of production. They ended up earning $275,000 by 1951which was quite a fortune for a small restaurant at that time. Along with other pioneers in the fast-food business, by 1990 fast-food restaurants had taken over the American landscape. Today, at least 50 million Americans are fed by more than 180.000 fast-food restaurants every day.

When analyzing these data, we might find it shocking that the decline of our health has moved in direct proportion(比例) to the rise of fast-food consumption.This,sadly, is not a coincidence(巧合) Since1990, various kinds of fast food have led to more consumption of calories compared to homemade meals.

The US government has conducted several surveys on this issue, and they have pointed out some alarming facts. Fast food and ultra-processed snacks are now taking the lead in more and more Americans’ daily diets. Rather than healthy food, more people prefer quick, easy treats with high calories like fried chicken and potato chips. Moreover, according to the surveys, fast-food consumption has more than doubled since the 1970s among people aged between 19 and 39. In a relatively short period of time, the fast-food industry has changed not only the way Americans eat, but also their economy and cultural landscape.The rapid development of the fast-food industry alsotriggersthe problem of increased overweight population in the US.

【推荐3】Listening to birds and water can lower stress and improve mood, study finds. Researchers have long known there are benefits from being in nature. Living around trees can help you live longer. Walking in the woods is good for your mood. Being near water can have positive effects on your well-being.

A new study finds that natural sounds offer health benefits too. There is plenty of evidence that spending time in natural areas is good for our health-but typically this research is done from a visual perspective, but we are curious what the role is of sounds we hear in these spaces.

Some examples they found reported in those studies included decreased pain, lowered stress, improved mood, and better cognitive(认知的) function. With these results in hand, they then listened to audio recordings from 251 sites in 68 national parks across the United States.

The sites with the most natural sounds and the lowest man-made sounds were located in Alaska, Hawaii, and the Pacific Northwest and were far from urban areas. Only three locations with high natural sounds and low noise pollution were within 100 kilometers(62 miles)of urban areas.

However, despite human-made noises being heard most of the time at sites in urban locations, birds were still heard about 60% of the time and geophysical sounds like wind and rain heard about 19% of the time.

Not all natural sounds deliver the same benefits, the researchers found. For example, they discovered that the sounds of water had the largest impact on improving positive emotions and health outcomes, while bird sounds ease stress and annoyance. And the sounds of both birds and water were heard more than 23% of the time in the national park recording sites.

Interestingly, there was also some evidence that natural sounds have benefits over silence. There was also evidence that more different types of natural sounds-more types of birds singing rather than just one type of bird-have benefits over fewer sounds.