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      A glass a day keeps obesity at bay. Wine has always been thought to cause weight gain because of its high sugar content, but new research suggests a glass a day could form part of a diet. Looking at past studies they found that, while heavy drinkers do put on weight, those who drink in moderation can actually lose weight.

    A scientist for the research team at Navarro University in Spain says, “Proper drinking may be more likely to protect against, rather than promote, weight gain.” An official organization reviewed the findings and agreed with most of the conclusions, particularly that present data do not clearly show if proper drinking increases weight.

    Boston University's Dr. Harvey Finkel found that the reasons relating alcohol (酒精) to changes in body weight are not properly understood. His team pointed out the strong protective effects (效果) of proper drinking on the risk of getting conditions like diabetes (糖尿病), which relate to increasing obesity. Some studies suggest that even very fat people may be at lower risk of diabetes if they are moderate drinkers.

    The group says alcohol provides energy that is quickly absorbed into the body and is not stored in fat, and that this process could explain the differences in its effects from those of other foods. They agree that future research should be directed towards assessing the roles of different types of alcoholic drinks, taking drinking patterns into consideration.

    For now there is little evidence that drinking small to moderate amounts of alcohol on a regular basis increases one's risk of becoming too fat. What's more, a study three years ago suggested that a chemical found in grapes and red wine, destroys fat cells.

    In the fall of 1959, Freed suffered a bad reputation for rumors of bribery (贿赂行为), and his troubles were too strong to be resisted. When WABC asked Freed to sign a statement swearing that he had never taken bribes, he refused and was fired. Although he later signed such a statement for WNEW-TV, he lost his television show as well.

    Finding himself unwelcome in New York, Freed fled to the West Coast, where he managed to land a daytime disc jockey (流行音乐播音员) job at KDAY in Los Angeles in 1960. Legal problems continued to bother him, though, and he was charged with taking bribes of more than $30,000 from a number of record companies. Publicly, Freed denied that he had ever accepted direct bribes, although he acknowledged that he had accepted gifts from record companies, but only for playing records that he was certain would become hits anyway. After a short time at KDAY, he left when the station management refused to let him promote his live rock ‘n' roll shows. He returned to New York, but not as a broadcaster. At the height of the great enthusiasm for the twist dance, he hosted a Manhattan twist revue (时事讽刺剧), but when this enthusiasm cooled, he found a disc jockey job at WQAM in Miami in 1962. During this difficult period, Freed began drinking heavily and lost his job in Miami after only two months. In December of 1962 he was found guilty in New York of two charges of commercial bribery and was given a six-month sentence and fined $300. This effectively ended his career.

    Freed spent the last years of his life in Palm Springs, California. Although he had redefined what it meant to be a disc jockey and named the music that had become an anthem (圣歌) for the world's youth, he was a disgraced (耻辱的) and broken man, no longer able to work in the business he loved. On January 20, 1965, he died in a hospital in Palm Springs.

    The insects are important to farmers. When a honeybee lands on a flower in plant, pollen (花粉) sticks to its legs. When the bee lands on another flower, some of the pollen falls off and fertilizes the second plant.

    The act of spreading pollen is responsible for many fruits, vegetables, nuts and other crops. Yet about 30 percent of honeybees in the United States and other areas have died in recent years.

    Mike Leggett is a researcher at the University of Maryland. He wants to learn why so many bees are dying. “The number of colonies (蜂群) that die every winter has been one in three. So on average 30 percent of the colonies have died every winter over the last six winters. And that's a huge number.” His research team examined the pollen that honeybees carried to their homes. They found that the pollen contained high levels of 35 different pesticides (杀虫剂), which are chemicals used to protect plants. “Pesticides are used, and have been used, pretty widely, for centuries, to protect plants from diseases,” says Mr Leggett.

    Keith Oh linger, a farmer and beekeeper in Maryland, has watched many of his bees die every winter. Mr Ohlinger thinks widespread bee death is caused by several things happening at once. But he does not feel sure that pesticides are a part of the problem, “I felt it was the result of a lot of little things. I didn't feel that there was probably one smoking gun. But there's a division (分歧) there, some people feel that it is just one thing.”

    Honeybees are important to agriculture. This makes the search for an answer to their death very important for Mr Leggett's team. As he knows, one in every three bites of food we eat is somehow pollinated by honeybees.

    AEA summer camp is an American-style day camp which follows a weekly theme. Themes are changed each week and each year to combine current trends and interests of children.

    Waikiki Sun & Sandbuckets of Fun (Week 1)

    Join Camp Adventure In a Polynesian Paradise! Come and move your toes in the soft white sand and listen to the symphony of a Seashell Band. It's great to be in Waikiki, where there's surf and sand. We'll drive and find various fish all around the island shore. It's Wet! It's Wild! It's Wonderful Waikiki Fun!

    Stars-spangled Spirit Spectacular (Week 2)

    It's a stars-spangled celebration across the nation! Join the old-fashioned ice cream social, play a double-header at the field of dreams, and learn about some heroes and founding fathers of America. Sparks (火花) will fly at your fantastic finale (结尾), as fireworks explode red, white and true blue.

    Amazing Adventures to the Outer Limits (Week 3)

    It's your time to shine as you join our Camp Adventure planetary race through outer space. See wonderful scenes as we take a spin around the solar system. Learn the order of the planets, hunt for moon rocks and chart your own course for a future space mission (任务). Join your favorite Star Wars friends as you journey on your unusual expedition to the outer limits.

The American Psychological Association（APA） has issued its first advisory on social media use in adolescence（青春期）. What's most striking in its data based on recommendations is how little we really know about how these apps affect our kids.

The relative newness of platforms like Snapchat and Tik Tok means little research is available about their long-term effects on teen and tween brains. Getting better data will require significant funding—and much more openness from tech companies.

"What little evidence we do have unsurprisingly suggests that social media trades on motivators that aren't great for young brains. Many kids' first exposure to social media occurs at the worst possible time when it comes to brain development," says Mitch Prinstein, a psychologist and neuroscientist at the University of North Carolina（UNC）.

"Things like 'button and artificial intelligence（in general）' are going to affect young people's brains in a way that's very different from adult brains when it comes to the desire to stay online and to say or do almost anything to get followers." When it comes to social interactions, he compares kids' brains to a car with a huge gas pedal and weak brakes（刹车）.

Earlier this year, Prinstein and his UNC colleagues published the results of one of the first studies of how the adolescent brain reacts to social media. The team surveyed a group of middle schoolers to understand their social media habits, and then stuck them in an MRI machine to watch their brains as they reacted to social rewards or punishments. They found that 12-year-olds who habitually checked social media had distinct neural patterns, with more activities over time in parts of the brain associated with motivation, salience（or where attention is focused） and cognitive control.

The team didn't weigh in on whether those differences were good or bad, or whether the relationship was causal or correlational. But their work points to the need for more research. It should also remind parents of the need to be keenly aware of social media's hidden influence on still-developing brains.