Dust on furniture may be bad news for waistlines (腰围). But it's far too early to add dusting to a weight-loss plan. Dietary fats and other materials that make up indoor dust can send a signal to human fat cells, telling them to grow. That process, in turn, might slow the body's rate of burning energy. Such changes could add to any weight problems a person might have.

    “We don't know what that means to long-term health and certain diseases yet,” says Heather Stapleton, one of the study's authors. But she notes that her team's findings also raise a question of whether pollutants in dust might play some role in the growing, global problem of obesity (肥胖).

    Stapleton and her colleagues collected dust from homes and offices. Studies found that some materials in the dust could turn on a protein (蛋白质) called PPAR-gamma 1. It's found in many human tissues. Turning this protein on can cause fat cells to grow. Researchers think this protein may be involved in obesity. But a second study now finds evidence that certain fats are mostly to blame. Cooking oils may send out some of these fats into the air, where they eventually find their way into house dust. Or, the authors say, the fats might enter house dust as part of the hair or skin cells shed (脱落) by people or pets.

    “While the findings are amazing,” says Mitchell Lazar, another study author, “these findings need to be taken as very limited.” Indeed, he adds several cautions about how the findings should be understood. “For one thing, people eat these fats in foods all of the time. That is likely to be a lot more than would be consumed from indoor dust,” he said.

    A long-term American study shows the importance of early education for poor children. The study is known as the Abecedarian Project. It involved more than one-hundred young children from poor families in North Carolina.

    Half of the children attended an all-day program at a high-quality child-care center. The center offered educational, health and social programs. Children took part in games and activities to increase their thinking and language skills and social and emotional development. The program also included health foods for the children.

    The children attended the program from when they were a few weeks old until the age of five years. The other group of children did not attend the child-care center. After the age of five, both groups attended public school.

    Researchers compared the two groups of children. When they were babies, both groups had similar results in tests for mental and physical skills. However, from the age of eighteen months, the children in the educational child-care program did much better in tests.

    The researchers tested the children again when they were twelve and fifteen years old. The tests found that the children who had been in the child-care center continued to have higher average test results. These children did much better on tests of reading and mathematics.

    A few years ago, organizers of the Abecedarian Project tested the students again. At the time, each student was twenty-one years old. They were tested for thinking and educational ability, employment, parenting and social skills. The researchers found that the young adults who had the early education still did better in reading and mathematics tests. They were more than two times as likely to be attending college or to have completed college. In addition, the children who received early education were older on average, when their first child was born.

    The study offers more evidence that learning during the first months and years of life is important for all later development.

    The researchers of the Abecedarian Project believe their study shows a need for lawmakers to spend money on public early education. They believe these kinds of programs could reduce the number of children who do not complete school and are unemployed.

    It is irrefutable: Parents, who talk to, read and engage with their very young children as often as possible, help them build literacy (读写能力) skills at an early age.

    Also certain: Parents of very young children usually have to do a lot of laundry. And low-income families tend to bring their kids with them to public laundromats (洗衣房).

    Those truths appear once a week at select neighborhood laundromats in Chicago. That's when librarians lay down colorful mats and oversized board books beside the industrial washing machines.

    Inside one of about 14 laundromats in the city's low-income neighborhoods, the librarians gather all available children for Laundromats Story Time (LST), a Chicago Public Library (CPL) program.

    With the noise of the washers and dryers, anywhere between a handful to more than a dozen children hear stories, sing songs and play games designed to help their brains develop. The event also aims to instruct parents on how to repeat the experience for their kids, working to raise poor literacy rates in underserved communities.

    "We read books, we sing songs, we do plays," says Becca Ruidl, the CPL's STEAM Team early learning manager, who runs the LST program. "We kind of keep it going so parents can walk in adn join in at any time. But a big part of what we do is model literacy skills for parents so they can do it at home with their kids."

    While a laundromat seems an unlikely place to engage with children, "we really wanted to meet people in the community where they're. "Ruidl says.

    And it clearly meets a need: Library officials say the program is in increasing demand, while Ruidl says families have adjusted their household's laundry day to suit the librarians' laundromat visits. At the same time, LST's co-sponsors—including a laundry industry trade group and Libraries Without Borders, an organization fighting poverty through literacy—have worked with the CPL to draft an instruction handbook to help expand the concept to other U.S. cities.

Training the Brain

    People who can accomplish unbelievable tasks, such as memorizing thousands of random numbers in under an hour, state that they just have normal brains. Some memory superstars compete in Olympic-like World Memory Championships. These mental athletes, or MAs for short, can memorize names of dozens of strangers in a few minutes or any poem handed them. Ed Cooke, a 24-year-old MA, explains they see themselves as participants rescuing the long-lost art of memory training. These techniques existed not to recall useless information, but to cut into the brain basic text and ideas.

    A study in the journal Nature examined eight people who finished near the top of the World Memory Championships. The scientists examined whether their brains were fundamentally different from everyone else's or whether they were simply making better use of memorizing abilities we all possess. They put the MAs and control subjects into brain scanners and had them memorize numbers and photographs. The result surprised everyone. The brains of the MAs and those of the control subjects were indistinguishable. On every test, the MAs scored in the normal range. However, when the scientists examined what part of the brain was used during a memory activity, they found the MAs relied more heavily on areas in the brain involved in spatial memory.

    MAs offer an explanation: anything can be fixed upon our memories and kept in order by constructing a building in the imagination and filling it with pictures of what needs to be recalled. Dating back to the fifth century, the building is called a memory palace. Even as late as the fourteenth century, when there were copies of any text, scholars needed to remember what was read to them. Reading to remember requires a different technique than speed reading. If something is made memorable, it has to be repeated. Until relatively recently, people read only a few books intensively (细致地) again and again, usually aloud. Today we read extensively, usually only once and without continuous focus.

    So the great difference is the ability to create impressive pictures in mind and to do it quickly. Using memory palaces, MAs create memorized pictures. For example, recombine the pictures to form unforgettable scenes such as the ways through a town. One competitor used his own body parts to help him memorize a 57,000-word dictionary.

    Anyone who wishes to train the mind needs first to create fantastical palaces in the imagination. Then they should cut each building into cubbyholes for memories. In a short amount of time, they will notice improvement with remembering things. To keep the skill sharp, MAs deliberately empty their palaces after competitions, so they can reuse them and they recommend that beginners do the same.

As people are becoming more socially conscious about where their food comes from and how it impacts the planet, they are choosing animal-free plant-based options. Cow-free meat has been around for quite some time and the popularity of brands of the cultivated meat is rising. While there are a large number of plant-based milk substitutes, none of them have the same taste of cow's milk. Now, a food-tech company created real dairy products without harming a single cow or the planet.

The company stresses that their product produced in the lab is not a milk substitute but rather is the real deal. And it is very healthy. The company also says that the lab-produced milk tastes identical to the real thing and they hope to eventually replace cows by creating every dairy product sold. They expect to roll out plant-based cheese and yogurt in addition to milk. “Our company was founded with the mission to stop using animals to produce -our food because, as dairy lovers, we realize that giving up on milk is not an option,” John said. “But today's milk comes with an unreasonable price tag. The dairy industry is destructive to our planet, our health, and our animals, and is simply not sustainable anymore.”

The environmental price tag of dairy farming is way too high. According to the World Wildlife Fund, dairy cows add a huge amount of greenhouse gases to the atmosphere and-contribute to global warming and climate change as well as pollute the air around them. Dairy operations consume large amounts of water and run-off of manure and fertilizers from these farms get into local waterways. The production uses only 5 percent of the resources and produces only 1 percent of the waste of producing cow's milk according to the company. And they accomplish this by being 100 percent cruelty-free unlike dairy farms.

It is very small, but it is really helpful. It can help you keep away from viruses (病毒) . You must bring it with you very often these days. 1 is it? Of course, it is a mask (口罩). To make masks fun and easy to wear, people around the world think of many interesting and special 2 .

Wear a smile

Masks cover (遮盖) our faces, 3 they can't cover our smiles. A French company makes masks with smiles on 4 . You can still show your smile to 5 when you go out.

Eat with me

A 6 in Japan teaches people to make special masks. When eating or 7 , people can change their masks in half. Look! A napkin (餐巾纸) is on the mask. People can put a spoon into their mouth. The napkin 8 like a mask to stop viruses.

Let's be fashionable

Fashion brands (品牌) make some beautiful masks. Look at this one. The mask is full of beautiful pictures 9 many flowers. Butterflies are flying around the flowers. Does it make you think of a beautiful garden? It can make you 10 and bring you great fun.