New research, attempting to throw light upon how male and female brains differ, has found that timing is everything. American Vanderbilt University researchers Stephen Camarata and Richard Woodcock discovered that females have a significant advantage over males in timed tests and tasks. The study involved more than 8,000 males and females ranging in age from 2 to 90 from across the US.

    “We found hardly any differences in overall intelligence. But we discovered that females performed better than men in time limited situations,” Camarata said, “It is very important for teachers to understand this difference in males and females when it comes to assigning work and tests.”

    Many males can do a better job without strict time limits, added Camarata.

    “Consider that many classroom activities, including testing, are directly or indirectly related to processing speed,” the researchers wrote in their report. “The higher performance in females may contribute to a classroom culture that favors females, not because of teacher bias(偏见)but because of inherent(与生俱来的)differences in gender processing speeds.”

    The researchers found that males scored lower than females in all age groups in tests measuring processing speed. However, the study also found that males consistently outperformed females in some language abilities, such as identifying objects and knowing antonyms(反义词)and synonyms(同义词). The research contradicts the popular belief that girls develop all communication skills earlier than boys.

    The researchers found no significant overall intelligence differences between males and females in any age groups.

    “We believe there are fundamental differences in how male and female brains end up getting organized,” Camarata said, “Our next studies will give us some insight into where these processing differences are occurring.”

    Rainy days don't have to get you down, a happiness expert has reported.

    Paul Dolan, Professor of Behavioral Science at the London School of Economics, said that people only feel miserable in bad weather because they think about it too much. Studies have shown that people who live in warm, sunny climates are no happier than those in chilly, wet climates, he says. So the British talking about the weather may be making us gloomier（沮丧的） than the weather itself.

    He said: “A study was done that measured the happiness levels of people in California compared to the North West. “They expected that people in California would be happier because it is more sunny, but they found that levels of happiness were exactly the same. If it is sunny every day you get used to it and the sunshine doesn't make you any happier. Most of the time the weather doesn't influence our well-being at all. But when we think about it, and think that it does, that's when we get miserable.”

    In his new book, Happiness By Design, Dolan argues that we can think ourselves happy by taking our attention away from what makes us sad.

    “Most of our anxieties come from what might be,” he argues. “If you want to be happier, pay attention to the things that make you feel good.”

    He also claimed that a problem shared was not always a problem halved(减半). He believed that humans are actually very good at being able to get over tragedy(悲剧) and loss.

    Professor Dolan also admitted for the first time that he had a stammer（口吃）, which had made his early life miserable. He added it only got better when he learned not to pay attention to his speech problem.

    “Things are never as bad as you imagine them being,” he said.

    The burst of barking suddenly woke me up. It was 2:30 a.m. in the early morning. Wondering why Rock was making so loud noises, I decided to go to him. By the time I made it to the bottom of the stairs, he was running up. I felt strange, for he had never come up the stairs, no matter what. I think that was his way of telling me, “We've got to go back up.”

    When I got to the top of the stairs, I turned around and saw a light on, but I didn't remember leaving one on. I walked downstairs again, and that's when I saw fire. I immediately shouted to my wife to wake up and get our three kids. I grabbed a knife and cut out the plastic that covered the window to the porch roof. I then forced open the window and kicked out the screen. I got everybody out on the roof and threw a blanket out there so we wouldn't slip off. It was cold, January cold. Then I started screaming for help. But help never came.

    I was scared of heights, but I couldn't let my family burn up. So I just jumped off the roof and got the wind knocked out of me when I landed.

    I found our ladder, placed it against the house, and climbed back up to the roof. I wrapped my arms around my daughter and carried my nine-month-old with my teeth, by his little sleeper. Then I climbed down the ladder. Once on the ground, I had my little girl hold her brother, and I went back up to the roof to get my other daughter. Then I went back up again and got my wife. I tried to get my dog, but he just disappeared in the black smoke. I never saw Rock alive again.

    Earlier this month, two rock climbers achieved what many thought impossible: They climbed up the 3,000-foot-high Dawn Wall in Yosemite National Park without specialized equipment. Climbing without this equipment is called "free-climbing." Until now, no one had free-climbed to the top of the rock face, which is a part of the mountain EI Capitan.

    EI Capitan, which means "the captain" or "the chief" in Spanish, has always presented a challenge to climbers. But the Dawn Wall, on the mountain^'s southeast face, is a particularly difficult route to the summit (顶峰). It is a rock formation that is both steep and relatively smooth. This makes free-climbing the rock face seem almost impossible.

    About seven years ago, professional climber Tommy Caldwell spotted a possible route up the wall. It took years of planning and preparation, but this month, Caldwell, 36, and his friend Kevin Jorgeson, 30, finally make the climb.

    Free climbers do use ropes and other basic safety equipment to catch them if they fall — and Caldwell and Jorgeson fell often. Before starting their climb, they broke down their route into 32 sections. Each section was based on a rope length called a "pitch." The rope was secured into the rock face to catch the climbers if they fell.

    Caldwell and Jorgeson's goal was to climb the Dawn Wall without returning to the ground. If they fell, they had to start that pitch all over again. The two men started climbing on December 27. They slept in hanging tents, and a team of friends brought them food each day.

    The men had spent years rehearsing (排练) the movements it would take to get through each pitch. They made it through the first half of the climb relatively easily. But halfway up, Jorgeson ran into trouble. In one difficult spot, he fell each time he attempted to climb. After 10 days of trying, Jorgeson finally made it to the next pitch.

    Getting through that troublesome pitch gave both climbers renewed energy. They finished the rest of the climb five days later, on January 14.

Gorman is the youngest poet in U. S. history. She became the youth poet laureate (获奖者) of Los Angeles at age 16 in 2014 and the first national youth poet laureate three years later. She has recently completed her studies at Harvard University.

Her mother, Joan Wicks, teaches middle school in Watts. Shuttling among the neighborhoods gave Gorman a window to the world. Her like for poetry dates at least back to the third grade when her teacher read Ray Bradbury's Dandelion Wine to the class.

Gorman is a lot better at it now, but still working on her confidence as a public speaker. "Until two or maybe three years ago, I couldn't say the letter 'r'. Even to this day sometimes I struggle with it. I'd want to say 'girls can change the world', but I can not say so many letters in that statement, so I'd say things like 'young women can shape the globe'."

For Gorman, writing became a cure. "I used writing as a form of self expression to get my word on the page. So the more I recited out loud, the more I was able to teach myself how to pronounce these letters which for so long had been my greatest impediment." Gorman said she also used a song from Miranda's Pulitzer Prize-winning Broadway musical Hamilton to help with her speaking. "But I don't look at my disability as a weakness," said Gorman. "It's made me the performer that I am and the storyteller that I strive to be."

In September, Gorman will release Change Sings, the first of two children's books. The poet says she desires to publish a book "in which kids could see themselves as change-makers in history, rather than just observers".

As the school year barely(刚刚) starts in Denver, French teacher Melanie is filled with worry that her students are always absent-minded. Yet, the problem isn't messaging, enjoying video games or delivering notes. Surprisingly, the problem is about the ongoing heat wave in Denver.

"Today was a little bit hot, so I noticed that kids were very sleepy and they had to get up to drink water quite often." said Melanie, who works at Denver East High School. "If you lose too much water, you have to keep going to the water fountain, which can take away from their classroom experience." While nodding off in class on a warm day may seem acceptable for average teens, Melanie's observation carries a bigger result than dry lips.

There have been quite a few media reports about teachers noticing that students were not able to focus on hotter days," said RJisung Park, a researcher. "Does a hotter climate during the school year actually affect the rate of learning?" The drop in academic achievements couldn't be explained by hotter weekends or hotter summers, but the trend was connected to higher temperatures on school days alone.

The connection between lost learning and a greater number of hot days is one more example of how climate change is already affecting our lives, and it's an alarm bell for what we stand to lose in the future.

Humans still have time to lessen the global warming. Without any important changes in the next 10 years, the globe will be trapped in heat waves that might be too much for human beings.