Pound for pound, healthy food is cheaper than junk food, according to a new research from the U. K.

    The Institute of Economic Affairs found that the average cost for a “wide range” of healthy foods was about £ 2 per kilogram, compared with £ 3 a kilogram for less-healthy products such as processed and ready-made foods.

Still, study after study finds that cost is often a barrier when it comes to healthy eating. Convenience drives consumers to care about habits more than prices, the U. K. study concluded. Taste and convenience often play a larger role in people's food choices than price or nutritional quality.

    “Processed foods are extremely expensive, especially when it comes to the nutrient value. Some of the healthiest, most inexpensive foods aren't so attractive. Beans cost next to nothing, especially when bought dry and in great amounts. They take time and some skills to prepare. ” said Ciara Foy, a nutritionist.

    Instead, busy parents reach for the chicken. “You might be getting something that has enough calories to fill you up but you're actually not getting any nutrients, so your body's going to keep wanting more and more food,” said Foy. “And that's why in North America we, re overfed and undernourished (营养不良的).”

    Makers tend to try to promote their product based on perceived health benefits, which makes consumers confused at times with what is a healthy product and how much you should pay for those benefits. The most expensive items, healthy or not, are the ones that end up in the trash. “A lot of people waste a lot of food,” Foy said. It's estimated that more than $ 30 billion of food is wasted in Canada every year. Foy recommends taking a look in your fridge to see what needs to be used up when planning for the next night's meals. “If you actually cut down on the waste you'll find that you can afford healthy food,” Foy said.

    It was a cold winter. The wind blew all night and the snow was blinding. When morning came, my three children and I got up and made our way to the windows. As we looked out the window, we saw that the henhouse was gone. Our three hens had been blown away.

    I looked at the emptiness outside. Then I saw all three chickens sat around the edge of a white bucket. How was this violent wind not blowing them into the field beyond? I quickly pulled on long snow pants and heavy winter coat, wrapped a scarf and stuck my feet into very large boots .

    I shouted at the wind as it blew. I was alone, save for my children. They stared out the window into the vast white sea of snow, their eyes peeled for any sign of movement. Outside I heard the sound of my boots as I walked against the wind.

    The snow circling around me, I steadily made my way to the soft cluck-cluck-cluck sound my hens always made. When I reached them, I saw that their little feet were holding on to the edge of the bucket, heads bent forward and away from the wind. I gently lifted each hen and put it carefully into the warm inside. Then I began the freezing walk back to the small shed directly behind our house. One by one I laid my chickens on the cold floor, and they began to cluck softly.

    As I shut the shed doors, my eyes went directly to the window where my children were watching. They jumped up and down cheering, and so did I! I wasn't some dragon slayer (屠龙者) from a fairy tale. I was simply a mom, but the look on my children's faces told me that they thought I was a hero mom.

    Life often requires people to join in unpleasant situations. Rather often, these unpleasant situations do not happen on their own, but happen because of other people's actions and words. Fortunately, there are useful ways to deal with conflicts(冲突).

    The best way to solve a conflict is not to let it happen. Nothing useful comes out of a conflict. It is a total waste of time and energy for both sides and thus everyone should try his best to prevent conflict. To do this, you will need to learn the points of view your potential opponents (对手) share and the benefits of understanding people around you.

    If the conflict has already arisen, one of the best methods to settle disagreements is to treat the situation with humor. It does not mean, however, that you must ignore（忽视） your opponent's arguments and make jokes about them; it means that you should be in a friendly atmosphere, saying difficult-to-express things with a bit of humor. Humor will help you reduce anger and re-think problems to make them look easier to settle, and set your opponent's mind to working on a problem with you, not against you. This way, a conflict can become an opportunity for building a greater connection between you and your opponent.

    If the situation turns verbally abusive (恶语中伤), put a stop to it. Firmly but calmly state: "You're very angry right now and you're saying things you don't mean. I'm going to excuse myself. We can talk again after you calm down." Then leave the room or ask them to leave.

    To foreigners Chinese food isn't a meal. It's an experience. Failing to order the right food and struggling with chopsticks are only parts of the adventure every time I sit down in a restaurant.

    In one of our favorite Sichuan restaurants, it took 3 waiters and 15 minutes for us to order only our drinks. I simply wanted water, but my dad wanted to try the fresh juice they had listed on the menu. There were two problems, however. There were neither pictures nor English on the menu. After several hand gestures, he ended up ordering just a coca cola to simplify things.

    One of our most embarrassing moments was at Xiabuxiabu, a very famous hotpot chain. As soon as we walked in, the entire restaurant seemed to stare at us. Uncomfortable already, we had the most difficulty ordering our meal, since there were so many steps to the whole process. Fortunately, the waitress was very patient and successfully gave us our food. Although it was not the best food I had in Beijing, it was certainly entertaining dropping things into the boiling pot of soup. Once, I tried picking up a dumpling to show my father and dropped it onto his pants. I looked behind me, and people were laughing secretly at my chopstick skills.

    No matter how many difficulties we have regarding food, our experiences give the best stories to tell. The servers are always understanding of our situation and their friendliness is exceptional. They always greet us with a big smile even when they realize they have to clean up the noodles slipped through our clumsy chopsticks.

    We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices (装置)well after they go out of style. That's bad news for the environment—and our wallets—as these outdated devices consume much more energy than the newer ones that do the same things.

    To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life—from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s.Devices were grouped by generation. Desktop computers, basic mobile phones, and box-set TVs defined 1992.Digital cameras arrived on the scene in 1997.And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.

    As we accumulated more devices, however, we didn't throw out our old ones.“The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house,” said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007.We're not just keeping these old devices—we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions (排放)more than doubling during the 1992 to 2007 window.

    So what's the solution (解决方案)?The team's data only went up to 2007,but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.

I was asked by a reader recently why so many animals seem to have pink ears，when their bodies are all different colours? The truth is that most animals actually don't have pink ears. Let us explain.

Near the equator (赤道), where the climate is hot, animals are likely to have darker skin, including on their ears. Think of the African elephant, which has quite dark ears. In colder climates, skin colour is usually lighter and often pink.

Why is skin colour different in different climates? Skin pigmentation, which is what gives skin its colour, can protect against sunburn and skin cancer. When animals live in colder parts of the world, they don't need it as much to survive. Light-coloured skin also helps animals stay warmer because it reduces heat loss, which is useful if you're in a colder climate.

For most animals, the colour of their fur or other body covering has generally developed as camouflage. That allows animals to mix into the background and avoid being eaten, or for predators (捕食者) to remain hidden during hunting. One example is the sandy-coloured coat of the desert fennec fox, which uses camouflage for both hunting and hiding.

By the way, in many animals, ears come in many different shapes and sizes. For example, in bats, the serval (a type of African wildcat) and the fennec fox, the ears are large compared to their body size—this helps them hear better because it allows them to sense more sound waves. Naked mole-rats have tiny ears because they need to dig a lot. Big ears would get in the way. The other downside of big ears is that you can lose a lot of body heat. That's why animals that live in really cold places, like the Arctic fox, have quite small ears.