Can eating a chocolate bar every day really prevent age-related memory loss? No. But a new research shows that large amounts of flavones, substances found in cocoa, tea and some kinds of vegetables, may improve age-related memory failure.

    Dr. Scott Small is a professor of neurology (神经病学) at Columbia University in new York City. He is the lead writer of a research paper describing the effects of cocoa flavones on brain activity. His study involved 37 volunteers aged between 50 and 69. Researchers gave them a high-level flavones drink made from cocoa beans or a low-level flavones drink. For a period of three months, some subjects got 900 milligrams of flavones a day. The others got 10 milligrams of flavones each day. Brain imaging and memory tests were given to each study subject before and after the study. Dr. Small says that the subjects who had the high-level flavones drink showed much improvement on memory tests.

    The researchers warn that more work is needed to be done because this study was performed only on a small group. Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavones capsules(胶囊). The study subjects will be divided into two groups and will take two pills per day. The capsules used will all look the same. But one group's capsules will contain flavones, while the other group will take capsules made of an inactive substance, or placebo

    Dr. Manson says it's not necessary for people to start eating more chocolate, because a person would have to eat a huge amount of chocolate to get the same level of flavones given to the rest subjects. He adds many manufacturers have planned to remove the flavones from their chocolate products. Similarly, Dr. Manson says a cocoa-based flavones extract(提取)may be developed in the future But he says that more studies are needed to see how much flavones is good for our health.

    For Zack, the shave was more than just a way to fund lifesaving research. It was a way to honor his late brother, Taylor Frink.

    Taylor, a volunteer firefighter in North Carolina, was killed in a car accident last September. Before his passing, Taylor was an eager supporter of St. Baldrick's. He went bald（秃头）for the cause in 2015, supporting kids with cancer and raising money to find cures.

    As a local hero, Taylor was beloved by the community. When he died, more than 1, 000 people attended his funeral to pay their respects. Zack looked up to his brother and this was the reason why he decided to become a junior firefighter himself. They did everything together. Zack remembers.

    Zack knew his brother had planned to shave again in 2016, so without hesitation he decided to fill his shoes and registered to shave at the local St. Baldrick's event in Kinston, N. C.

    “He was always goodhearted, and I want to make my brother proud,” shares Zack.

    As part of Zack's kindnesses, he raised more than $ 1,000 for the St. Baldrick's Foundation primarily by selling T-shirts he designed. Leading up to the event, Zack also visited his city council, commissioner's office and challenged the local official department to get involved.

    “We are not going to let Taylor's name be forgotten. That is what I love about St Baldrick's,” says Jean Culbreth, volunteer event organizer. “Zack gets it. He gets that what he is doing is keeping his brother's name alive.”

    The day finally came and Zack took his seat under the clippers (剪具), not only to honor his brother but to help kids with cancer. It was a special moment for all, and by the end of the day the event had raised more than $ 22,000!

    Nola (August 21, 1974 -November 22, 2015) was a northern white rhino(犀牛) who lived at the San Diego Zoo Safari Park near Escondido, California. At her death, she was one of only four remaining northern white rhinos in the world. The other three lived in Kenya. World Rhino Day, held on September 2, is to raise awareness(意识) of the less than 30,000 other rhinos left on Earth.

    “Rhinos need our help today, not tomorrow,” Nola's lead keeper Jane Kennedy said. “Last year we lost over 1,200 rhinos just in South Africa. If we continue to lose more than 1,000 rhinos a year, in 10 to 20 years all the rhinos on the planet will be gone.”

    “Unfortunately, most animals are in danger of dying out because of humans,” Kennedy says.“ Humans have either poached animals, or because there are over seven billion of us, we've taken up too much of the world's resources ”. Poachers illegally hunt rhinos for their horns. They sell the horns for thousands of dollars per pound, to be used for art, jewelry, and decorations. Experts believe that one rhino is poached every eight hours.

    In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a program through which researchers have collected cell (细胞) samples from more than 8,000 different types of animals, including the northern white rhino. Scientists hope that by studying the rhino cells, they will get greater understanding of it, and will find ways to increase its numbers.

    Jane Kennedy describes World Rhino Day as “a celebration of rhinos along with an awareness campaign for everybody across the world to know that rhinos need our help.” At the San Diego Zoo, children and adults are welcome to visit and speak with zookeepers to learn about rhinos. But you don't have to live in San Diego to celebrate World Rhino Day. It is observed around the world, with zoos and wildlife parks holding special events and programs to teach people about rhinos, and enable them to see the animals up close. For more information, go to www.worldrhinoday.org.

    The national environmental watchdog has declared that boosting efforts to cut air pollution in northern China, especially winter smog from the burning of coal, is a mission for this year.

    Burning coal for winter heating has been listed as one of the primary causes of air pollution, Chen Jining, minister of environmental protection, said on Monday at the annual meeting on environmental protection in Beijing.“As much as 60 percent of smog content is caused by coal burning in the starting phase of each smog”, said Fang Li, an official with Beijing's Environmental Protection Bureau. Therefore, Beijing has declared that it will wipe out coal use in its most rural areas by 2020.

    To start with, Beijing will replace coal-fired heating stoves with those powered by electricity or gas in 400 villages this year, before taking the campaign to the districts of Chaoyang, Haidian, Fengtai and Shijingshan by 2017,said Guo Zihua, a municipal rural development official. Beijing's downtown districts of Dongcheng and Xicheng eliminated coal burning last year, officials said.

    The capital and other places in northern China experienced several smog alerts in November and December, when peak readings were many times higher than the national safety level. Obviously, the situation is deteriorating, and will become a norm. So the government came up with a “smog subsidy (津贴)” for those who work outdoors, and 95 percent of the respondents to a survey support it.

    The Trade Union in Zhengzhou City surveyed subscribers to its official WeChat account and found that 88 percent of nearly 400 respondents said priority should be given to outdoor workers on smoggy days But 9 percent said air pollution affects everyone so it would be unfair to only address the concerns of people who work outdoors.

    Over half of the respondents think the extra subsidy, if applied, could come in the form of protective tools or cash. Twenty-two percent said money is the easiest way. To finance the proposed subsidy, 53 percent think the government and companies should jointly pay the bill, while 44 percent said central and regional governments should be responsible.

    The young boy saw me, or rather, he saw the car and quickly ran up to me, eager to sell his bunches (串) of bananas and bags of peanuts. Though he appeared to be about twelve, he seemed to have already known the bitterness of life. "Banana 300 naira. Peanuts 200 naira"

    He said in a low voice. I bargained him down to 200 total for the fruit and nuts. When he agreed, I handed him a 500 naira bill He didn't have change, so I told him not to worry.

    He said thanks and smiled a row of perfect teeth.

    When, two weeks later, I saw the boy again, I was more aware of my position in a society where it's not that uncommon to see a little boy who should be in school standing on the corner selling fruit in the burning sun. My parents had raised me to be aware of the advantage we had been afforded and the responsibility it brought to us.

    I pulled over and rolled down my window. He had a bunch of bananas and a bag of peanuts ready. I waved them away. "What's up?" I asked him. "I… I don't have money to buy books for school." I reached into my pocket and handed him two fresh 500 naira bills.

    "Will this help?" I asked. He looked around nervously before taking the money. One thousand naira was a lot of money to someone whose family probably made about 5,000 naira or less each year. "Thank you, sir," he said. 'Thank you very much."

    When driving home, I wondered if my little friend actually used the money for school-books. What if he's a cheat? And then I wondered why I did it. Did I do it to make myself feel better? Was I using him? Later, I realized that I didn't know his name or the least bit about him, nor did I think to ask.

    Over the next six months, I was busy working in a news agency in northern Nigeria. Sometime after I returned, I went out for a drive. When I was about to pull over, the boy suddenly appeared by my window with a big smile ready on his face

    "Oh, gosh! Long time."

    "Are you in school now?" I asked.

    He nodded.

    "That's good," I said. A silence fell as we looked at each other, and then I realized what he wanted. "Here," I held out a 500 naira bill. "Take this." He shook his head and stepped back as if hurt. "What's wrong?" I asked. "It's a gift"

    He shook his head again and brought his hand from behind his back. His face shone with sweat (汗水). He dropped a bunch of bananas and a bag of peanuts in the front seat before he said, "I've been waiting to give these to you."

A visually-challenged man from Beijing recently hiked (徒步) 40 days to Xi'an, as a first step {#blank#}1{#/blank#} (journey) the Belt and Road route (路线) by foot. 

On the 1,100 kilometer journey, the man Cao Shengkang, {#blank#}2{#/blank#} lost his eyesight at the age of eight in a car accident, crossed 40 cities and counties in three province. Inspired by the Belt and Road Forum for International Cooperation {#blank#}3{#/blank#} (hold) in Beijing, Cao decided to cover the route by hiking as a tribute (致敬) to the ancient Silk Road. {#blank#}4{#/blank#} friend of his, Wu Fan, volunteered to be his companion during the trip. 

Cao and Wu also collected garbage along the road, in order to promote environmental {#blank#}5{#/blank#} (protect). Cao believes this will make the hiking trip even more {#blank#}6{#/blank#} (meaning). The two of them collected more than 1,000 plastic bottles along the 40-day journey. 

In the last five years. Cao {#blank#}7{#/blank#} (walk) through 34 countries in six continents, and in 2016, he reached the top of Kilimanjaro, Africa's {#blank#}8{#/blank#} (high) mountain. 

Now, Cao has started the second part of his dream to walk along the Belt and Road route. He flew 4, 700 kilometers {#blank#}9{#/blank#} Xi'an to Kashgar on Sept. 20, {#blank#}10{#/blank#} (plan) to hike back to Xi'an in five months.