【推荐1】You wouldn't think of driving your car to work in the morning with an empty tank of gas, yet thousands of parents send their children off to school without any breakfast.

"After an overnight fast of eight to twelve hours, the brain needs fuel, "said Joan Carter, manager for the Children's Nutrition Research Center in Houston.

The body breaks down food to produce this fuel in the form of glucose（葡萄糖）. Because glucose levels are associated with memory function, children can have difficulty focusing when they skip breakfast. Research shows that breakfast eaters tend to pay more attention to their teacher in class than those who rarely eat breakfast.

They tend to be more creative and better performers in school. They show more energy by late morning, have more strength and endurance, concentrate better, and are better at problem-solving. Children who are hungry can be slow or nervous during classroom activities or can appear disinterested when they have a difficult task to perform.

Researchers have also discovered that students who eat breakfast regularly tend to have better health overall.

They take in more vitamins and minerals, consume less fat and cholesterol（胆固醇）, and may even have less chance of becoming overweight than breakfast-skippers. Without breakfast, it's difficult for children to get the nutrients they need throughout the day. Research shows that nutrients missed at breakfast aren't made up for at other meals.

"Breakfast is the most important meal of the day and there's no excuse for not eating breakfast," Dr. Carter said. A piece of bread and a glass of milk take little time to prepare. If you are trying to lose weight, skipping breakfast is also a big mistake. You will be tired and hungry by mid-morning. Then you'll want to eat a snack that isn't healthy.

Breakfast should provide at least 1/4 to 1/3 of a child's daily needs for vitamins, minerals and calories. A nutritious breakfast also provides the sugar, protein and fat they need because they are continuously growing and changing. Parents should set a good example for children. "You can't run out the door without eating breakfast, yet insist that your kids sit down and eat something," Dr. Carter said.

【推荐2】Technology offers conveniences such as opening the garage door from your car or changing the television station without touching the TV.

Now one American company is offering its employees a new convenience: a microchip implanted (植入) in their hands. Employees who have these chips can do all kinds of things just by waving their hands. Three Square Market is offering to implant microchips in all of their employees for free. Each chip costs $300 and Three Square Market will pay for the chip. Employees can volunteer to have the chips implanted in their hands. About 50 out of 80 employees have chosen to do so. The president of the company, his wife and their children are also getting chips implanted in their hands.

The chip is about the size of a grain of rice. Implanting the chip only takes about a second and is said to hurt only very briefly. The chips go under the skin between the thumb and forefinger. With a chip in the hand, a person can enter the office building, buy food, sign into computers and more, simply by waving that hand near a scanner. The chips will be also used to identify employees. Employees who want convenience, but do not want to have a microchip implanted under their skin, can wear a wristband (腕带) or a ring with a chip instead. They can perform the same tasks with a wave of their hands as if they had an implanted chip.

Three Square Market is the first company in the United States to offer to implant chips in its employees. Epicenter, a company in Sweden, has been implanting chips in its employees for a while.

Three Square Market says the chip cannot track the employees. The company says scanners can read the chips only when they are within a few inches of them. “The chips protect against identity theft, similar, to credit cards.” The U.S. Food and Drug Administration approved the chips back in 2004, so they should be safe for humans, according to the company.

In the future, people with the chips may be able to do more with them, even outside the office. Todd Westby is Chief Executive Officer of Three Square Market. He says, “Eventually, this technology will become standardized allowing you to use this as your passport, public transit, all purchasing opportunities, etc.”

【推荐3】As for child vaccinations, parents usually get paperwork lost, or forget whether their child is up to date. Now a group of MIT researchers has developed a new way to address this problem: inserting the record directly into the skin. Along with the vaccine, a child would be injected with a bit of dye that is invisible to the naked eye but easily seen with an app that shines special light onto the skin. The dye would be expected to last up to five years.

The system would provide quick and easy access to vaccination history, and add little to the cost or risk of the procedure. “In developing countries where medical records may not be as complete or as accessible, there can be value in having medical information directly associated with a person,” says Ana Jaklenec, lead author of the study.

Delivering the dye required the researchers to find something that was safe and would last long enough to be useful. “That’s really the biggest challenge we overcame in the project,” says Jaklenec, adding that the team tested a number of dyes hut could not find any that lasted when exposed to sunlight. The team ended up using a technology called quantum dots, which were originally developed to label cells during research. The dye has been shown to be safe in humans.

“When people were still getting vaccinated against smallpox, they got a visible scar on their arm that made it easy to identify who had been vaccinated and who had not. But obviously, we didn't want to give people a scar.” Jaklenec says, noting that her team was looking for something that couldn’t be seen. The researchers also wanted to avoid technologies that would raise even more privacy concerns, such as databases with names and identifiable data.

The researchers hope to add more detailed information to the dots, such as the date of vaccination. Along with them, the team eventually wants to inject sensors that could also potentially be used to track aspects of health such as insulin levels in diabetics.

【推荐2】Modern science suggests that a healthy lifestyle matters much to how long you can live and how well you live. Here are some tips for you to form a healthy lifestyle.

Keep a scientific diet. Keep in mind that sugar can be removed from our diet completely. Over intake of sugar is one of the main reasons for getting fat. Over intake of protein or fat and low intake of fiber can also lead to getting fat. Only a few grams of protein do we need every day to keep our body in order. Like rain to crops, not the more the better.

Be always in a good mood. There is a relationship between the mood and health. A good mood keeps you in high spirits. Thanks to the Internet, we can enjoy and learn much without going out. Take a look at some online shops and pick up some bargains, enjoy music and movies and chat with good friends. Just keep happy.

Enough sleep. Two studies show the reasons why teenagers and adults don’t have enough sleep. With teenagers, a major reason is mobile phone use; with adults, it’s work. Meanwhile, a third study of young children shows that lack of sleep in early life may lead to serious problems in future. Everyone needs at least 8­hour sleep to recover from tiredness and the hurt caused by hard work in the daytime.

Proper exercise. Do exercise to keep away from fatness. Because of the quick pace of the modern life, you don’t have time to do exercise every day, but at least three times a week and 45 minutes each time.

【推荐3】If you use social media to chase away loneliness, a new study suggests that you’re going against the grain.

We may have heard a lot about the benefits of interacting with others online, but the findings of a study conducted by scientists from the University of Pittsburgh School of Medicine show a direct relationship between social media usage and feelings of isolation. In short, the more time you spend on social media, the lonelier you may feel.

With increasing usage of a large number of apps that allow for endless virtual connectivity, loneliness seems like the last problem social media users would face, but according to Brain A. Primack, the leader of the study, it has the exact opposite effect.

“Mental health problems and social isolation are widespread among young adults nowadays,” Primack said. “We are naturally social creatures, but modern life tends to separate us instead of bringing us together. While it may seem that social media provide opportunities to fill the social void, I think this study suggests that it may not be the solution people were hoping for.”

Primack and his team examined the social media habits of 1,787 U.S. adults aged between 19 and 32 via a questionnaire that asked about the usage frequency and the time they spent on the most popular social media platforms. Eventually, they determined that young adults who are constantly logging in social media are lonelier than those with less social media usage. Frequent exposure to unrealistic descriptions on social media instead of face-to-face social interactions may give people the impression that others are living more happily, and this may make users feel more isolated in comparison.