It is a cold and dry winter morning. When you wake up, you feel that your throat hurts. You begin to sneeze and later you may cough. You must have a cold! Wait a moment. Could it just be a common cold or the flu that's been going around?

    A cold gives you a runny nose and cough. But it's usually easy to deal with. Some take medicine while others drink herbal tea or chicken soup. Usually you feel better after a week.

    On the other hand, the flu can be much more dangerous. It usually gives you fever.

    Sometimes it can cause death. According to an American magazine, the worst flu killed about 50 million people from 1918 to 1919.

    Don't worry. If you get a flu vaccine（疫苗）, it can stop you from getting the virus. Flu vaccines work by giving the body a small amount of flu viruses. This causes your body to develop antibodies. So next time you get the flu, the antibodies should help you.

    The flu virus changes every few years. Therefore, there are so many types of flu, such as H1N1 and H5N1. The antibodies for one type of flu can't help us against all types of flu. That's why we need to get vaccine every year.

    However, good health habits may also help stop you developing a cold or flu. Washing your hands often helps stop you from getting viruses. It is also important to get regular exercise and eat healthy food. All these can help you strengthen your immune system.

    That cold January night, I was growing sick of my life in San Francisco. There I was, walking home at one in the morning after a tiring practice at the theater. With opening night only a week away, I was still learning my lines. I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.

    As I walked down empty streets under tall buildings, I felt very small and cold. I began running, both to keep warm and to keep away any possible robbers. Very few people were still out except a few sad-looking homeless people under blankets.

    About a block from my apartment, I heard a sound behind me. I turned quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me nervous, so I started to run faster. Not until I reached my apartment building and unlocked the door did I realize what the noise had been. It had been my wallet falling to the sidewalk.

    Suddenly I wasn't cold or tired anymore. I ran out of the door and back to where I'd heard the noise. Although I searched the sidewalk anxiously for fifteen minutes, my wallet was nowhere to be found.

    Just as I was about to give up the search, I heard the garbage truck pull up to the sidewalk next to me. When a voice called from the inside, "Alisa Camacho?" I thought I was dreaming. How could this man know my name? The door opened, and out jumped a small red-haired man with an amused look in his eyes. "Is this what you're looking for?" he asked, holding up a small square shape.

    It was nearly 3 a. m. by the time I got into bed. I wouldn't get much sleep that night, but I had got my wallet back. I also had got back some enjoyment of city life. I realized that the city couldn't be a bad place as long as people were willing to help each other.

    Developed by researchers and designers specializing in typography(印刷术)and behavioral science, Sans Forgetica is a new font(字体)designed to help readers better remember the information they read by forcing them to spend a bit more time on each word.

    The design of Sans Forgetica is based on a font called Albion, but with substantial  modifications(修改)to reduce familiarity and attain its goal of engaging the brain more and helping the reader retain(保留) more information. It was developed by scientists at RMIT University in Melbourne, Australia, who believe it could help students studying for exams.

    “We believe this is the first time that specific principles of design theory have been combined with specific principles of psychology theory in order to create a font, ”Behavioral economist Jo Peryman told DW.

    If fonts are too familiar, readers often glance over them without their brain creating may  memories of what was read. At the same time, if a font is too outlandish, the brain has to struggle too much to decipher(破译)it while neglecting the retention of information. According to its developers, “Sans Forgetica lies at a sweet spot where just enough obstacle has been added to create that memory retention.” Its modifications force readers to spend more time, but not too much time, reading each word, allowing the brain to engage in deeper cognitive processing.

    So does Sans Forgetica actually work? Does it help readers better remember the information they read? So far, studies have shown that it can make a difference, although not a significant one.

    One experiment had 96 participants recall word pairs presented in three different fonts. They remembered 69 percent of the word pairs written in Sans Forgetica, compared to 61 percent for the other fonts. In a different experiment, 303 students took a mock(模拟)multiple-choice exam, and whenever the text was presented in Sans Forgetica, they remembered 57 percent of the text, compared to only 50 percent of the surrounding text written in Arial font.

    So Sans Forgetica won't give you the memory of an elephant, but if you're the kind of person who believes every little bit helps, it might be worth a try.

    There's a good chance something you've bought online has been in the hands of a "picker" first. These are the workers in warehouses(仓库)who pick, pack and ship all those things we're ordering.

    At Amazon and other companies, they're working side by side with robots. Experts say while the robots are replacing some human workers, the machines aren't quite ready to take over completely.

    When a robot finds its storage unit, it slides underneath, lifts it up and then delivers it to a worker 一 they're called pickers. On a recent day, the computer told a picker to grab what looked like a fantasy board (棋盘)game. The picker found it, canned it and placed it on the conveyor belt.

    ^"In a traditional fulfillment center where the associate would walk to the different items, it can take hours to fulfill a customer order." Robinson says.

    Now, with the help of robots, that task takes minutes 一 and fewer humans.

So is this a sign we're entering a new industrial revolution?

    "It's definitely going to take over a lot of jobs." says Karen Myers, a scientist at SRI, one of Silicon Valley's oldest research centers.

    At the same time, she says, we're running against the limits of technology. Take "the picker" at the Amazon fulfillment center. Myers says those skills are proving to be uniquely human.

    "Our fingers are incredibly flexible and the current generation of robotic operators, they're getting much_, much better," she says. "But they're just not quite there yet."

    There's also the robot's brain.

    Remember that board game the Amazon worker was looking for? She could barely see the box filled into the storage bin — but she could tell it was a board game. Robots can't do that.

    Technologists say that, increasingly, humans will work side by side with robots — instead of robots working alone.

    Amazon says robots and humans enabled the Tracy warehouse to fulfill customer orders faster. That means more customers and more human workers.

    Washing habits have changed over the years. In the 16th century, most people had a bath once a month…if they were lucky. Up until the 1950s, it was once a week. Only just recently has the concept of daily showering become popular. But now, according to the New York Times, things are changing again.

    The latest trend is known as "soap-dodging". It basically consists of washing less, having fewer showers and using less soap. "I just wash my hair once a month now," said Brett Dawson, a 32-year-old management consultant. "I have just one bath a week," said Miriam Bayliss, a 28-year-old accountant.

    And it appears to be growing in popularity. A poll last year for tissue manufacturer SCA found that 41% of British men and 33% of women don't shower every day. And 12% of people have a proper wash just once or twice a week. Further research by Mintel found that more than half of British teenagers don't wash every day-with many opting for a quick spray of deodorant (除臭剂) to mask any smell. But why?

    There are a variety of reasons. Some claim that daily hair-washing is unnecessary. Commentator Matthew admitted that he hadn't shampooed his hair for a decade. Others say they just don't have the time. In 2008, the chemist Boots reported a 45% rise in sales of dry shampoo - a product that can be sprayed on hair between showers.

    And some people want to help the environment. "I limit my showers to about twice a week," said Nigel Hamerstone, a 42-year-old architect. "The rest of the time I have a sink wash." he adds. "I believe that I'm as clean as everyone else, and it's helped get my water consumption down to around 20 litres a day - well below the 100 to 150 average in the UK."

    So, will you be joining the new "washing revolution"?

Lovers often use flowers, chocolates, sweet gifts or grand declarations to express feelings deep in their hearts. But this year, you could let your love take off by traveling with that special someone on a romantic adventure. These are some romantic destinations which might bring new joy to your life and, most importantly, more fun and excitement to your relationship.

Stairs of the Turks, Sicily

Scala dei Turchi, or Stairs of the Turks, at Realmonte, southern Sicily, Italy. The Scala is formed by mud, a sedimentary rock(沉积岩) with a characteristic white color and is a popular tourist attraction and place to sun bath. In the film Malèna, the hero, 12-year-old Renato, always stare at the sunset here with his friends.

Somerset House in London

Located in central London, Somerset House is a popular filming location with its exterior featuring in several big budget Hollywood films. In the winter, its central courtyard is turned into an open-air playground for skating, as seen during the well-received film Love Actually.

Pokhara, Nepal

Pokhara is considered the tourism capital of Nepal. With two major hilltops as viewpoints to see the city and surrounding view, the city has recently added a bungee jumping site (the second in Nepal): Water Touch Bungee Jumping. Visitors also come here for adventure activities such as paragliding and skydiving. In the film Up in the Wind starring Ni Ni and Jing Boran, two young people climb up to the mountaintop and wait for the strong wind to carry them for paragliding. It becomes a moment of spiritual uplift.

Otaru, Hokkaido, Japan

A canal decorated with Victorian-style street lamps runs through Otaru. The city attracts many Japanese tourists as well as Russian visitors. Otaru is well known for its beer, fresh sushi and handicrafts like studio glass and musical boxes. At the poster of Japanese film Love Letter, Hiroko Watanabe stands among the snowy town and honors her dead lover.