Starting the day on an egg could keep your blood pressure (血压) under control, research suggests. Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressure-lowering drugs.

    The research, from the University of Alberta in Canada, showed that when eggs come in contact with stomach enzymes (酶) they produce a protein that acts in the same way as Ace inhibitors, but more work is needed to show the effects outside a lab and in the human body.

    Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to work on an egg. They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on increasing heart disease risks.

    Researcher Professor Bruce Griffin, from the University of Surrey, said: “The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected. The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs. The UK public do not need to be limiting the number of eggs they eat. They can be encouraged to include them in a healthy diet as they are one of nature's most nutritious foods.”

    The British Heart Foundation dropped its three-egg-a-week limit in 2005. However, almost half of Britons believe the limit still applies.

    Scientists investigated why Ebola virus is so deadly when it spreads from animals to humans and then from human-to-human contact. The research team looked at the Zaire Ebola virus in an animal system to understand how it gains strength. This virus is responsible for the current outbreak in West Africa. They found that initially the animal systems were not affected by the virus, but succeeding transmission(传送) into other animals caused the virus to “hot up” and become more severe.

    The team analyzed the viruses at different stages and were able to identify several changes in its genetic material that were associated with increased disease.

    Professor Julian Hiscox, who led the study from the University's Institute of Infection and Global Health, explains: “The work tells us that the evolutionary goal of Ebola virus is to become more fatal.”

    “We were able to show through genetic analysis which parts of the virus are involved in this process. The information we have gathered will now allow us to monitor for such changes in an outbreak as well as develop future treatment strategies.”

    Professor Roger Hewson, leading the study from Public Health England, Porton Down, said: “Ebola virus is such a destructive infection to the people affected by the disease and the economy of West Africa.”

    “Our understanding of Ebola virus biology is way behind that of other viruses and our cooperation shows how we can bring together our specialists' skills to close this knowledge gap.”

    Professor Miles Carroll, a co-author of the work, said: “This study has allowed the team to be at the forefront of developing methodologies to analyze patient samples recently taken by the European Mobile Laboratory from West Africa to understand disease evolution during the current outbreak.”

    We walked in so quietly that the nurse at the desk didn't even lift（抬起）her eyes from the book.Mum pointed at a big chair by the door and I knew she wanted me to sit down.While I watched,mouth open in surprise.Mum took off her hat and coat and gave them to me to hold.She walked quietly to the small room by the lift（电梯）and took out a wet mop（拖把）.She pushed the mop past the desk and as the nurse looked up.Mum nodded and said,"Very dirty floors."

“Yes.I'm glad they've finally decided to clean them,”the nurse answered.She looked at Mum strangely and said. “But aren't you working late?”

    Mum just pushed harder,each swipe of the mop taking her farther and farther down the hall.I watched until she was out of sight and the nurse had turned back to writing in the big book.

    After a along time Mum came back.Her eyes were shining.She quickly put the mop back and took my hand.As we turned to go out of the the door,Mum nodded politely to the nurse and said.“Thank you.”

    Outside,Mum told me, “Dagma is fine.No fever."

     “You see her,Mum?”

     “Of course.I told her about the hospital rules,and she will not expect us until tomorrow.Dad will stop worrying as well.It's a fine hospital.But the floors!A mop is no good.You need a brush."

    The Boy Made It!

    One Sunday, Nicholas, a teenager, went skiing at Sugarloaf Mountain in Maine. In the early afternoon, when he was planning to go home, a fierce snowstorm swept into the area. Unable to see far, he accidentally turned off the path. Before he knew it, Nicholas was lost, all alone! He didn't have food, water, a phone, or other supplies. He was getting colder by the minute.

    Nicholas had no idea where he was. He tried not to panic. He thought about all the survival shows he had watched on TV. It was time to put the tips he had learned to use.

    He decided to stop skiing. There was a better chance of someone finding him if he stayed put. The first thing he did was to find shelter from the freezing wind and snow. If he didn't, his body temperature would get very low, which could quickly kill him. Using his skis, Nicholas built a snow cave. He gathered a huge mass of snow and dug out a hole in the middle. Then he piled branches on top of himself, like a blanket, to stay as warm as he could.

    By that evening, Nicholas was really hungry. He ate snow and drank water from a nearby stream so that his body wouldn't lose too much water. Not knowing how much longer he could last, Nicholas did the only thing he could — he huddled (蜷缩) in his cave and slept.

    The next day, Nicholas went out to look for help, but he couldn't find anyone. He followed his tracks and returned to the snow cave, because without shelter, he could die that night. On Tuesday, Nicholas went out again to find help. He had walked for about a mile when a volunteer searcher found him. After two days stuck in the snow, Nicholaswas saved.

    Nicholas might not have survived this snowstorm had it not been for TV. He had often watched Grylls' survival show Man vs. Wild. That's where he learned the tips that saved his life. In each episode(一期节目) of Man vs. Wild, Grylls is abandoned in a wild area andhas to find his way out.

    When Grylls heard about Nicholas' amazing deeds, he was super impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to work to stay alive.

    Four books that will change your life

    If you're already working 9-5, you might not have much time to read. With the Blinkist app, you can get the key information from the best nonfiction books in minutes, not hours or days. Start with the four most-read titles on self-improvement.

    Thirteen Things Mentally Strong People Don't Do by Amy Morin

    You can't escape misfortune in life. But you can change how you respond to it. Do you struggle to get over your failures? Or live with things out of your control? Getting over these troubles can have a great influence on your everyday life, Morin shares how her most successful therapy（治疗）patients overcame these difficulties.

    How to Stop Worrying and Start Living by Dale Carnegie

    Ever wondered why you can't stop worrying about something? No matter how hard you try, do you focus on the same issue? By defining the source of your stress, you can get over it once and for all. Camegie came up with an effective way that helps you deal with any over-thinking situation.

    Finding Your Element by Ken Rotoinson

    Society often encourages us to follow a certain linear plan. Everyone has a passion. If you don't know what yours is, it just means you haven't discovered it yet. Or perhaps you have, buth disappeared early in life. Find out how you can break free of society's strict rules and find your calling in life.

    Emotional Intelligence by Daniel Goleman

    Did you know if your pulse rate rises above 100 bpm, you're considered too emotional to think rationally（理智地）? You probably let feelings cloud your judgment more often than you know. Goleman explains how you can avoid letting your emotions rule you and make better decisions in life.

    A new device (设备) called Orion is helping those who are blind to see. It does this in a new way by helping them experience the world around them.

    Jason Esterhuizen lost his eyesight after a car accident. He never thought he would be able to see light or movement again. But now with the movement of a switch (开关), his world suddenly grew brighter.

    He says, "I still can't put it into words. I mean from being able to see absolutely nothing, it's completely black, to all of a sudden seeing little flickers (闪烁) of light move around." It is not full or normal sight, but Esterhuizen can move about in the world around him.

    The new technology uses several parts. One is a small device placed in the brain. The other parts are a video camera on sunglasses and a processing device that can be carried in a person's clothes. When the user points the camera, a signal goes to the processor (处理器) and then back to the glasses. The glasses then are in wireless communication with the device in the brain. The information causes a pattern to develop in the part of the brain. The pattern helps users sense or see movement and shapes of light. And it all happens in seconds.

    Esterhuizen is one of just two people in the U.S. testing this technology. He says that "I can tell someone moving across the room, walking past me or walking away from me, or it's a light against the wall. It is just amazing to have some form of functional vision again." He adds that now he can do everyday activities around his home that he once could not. It is easier to walk outside.

    The researchers believe that one day this technology could help people who have lost their vision because of illnesses like diabetes. It may also help those with poor vision or who were born blind.