What's your opinion on spicy food? Some people cannot handle even the smallest amount of chili(辣椒) in their dinner while others can't get enough of it.       

Scientists have long been puzzled by why some people love chili and others loathe it. Plenty of research has been done on the subject, dating back to as far as the 1970s. Previous results showed that a love of chili is related to childhood experiences, and cultural influences affect our taste buds, too. But the latest study has found that a person's love of spicy food may be linked to his or her personality more than anything else, CBC News reported.

“We have always assumed that liking drives intake—we eat what we like and we like what we eat. But no one has actually directly bothered to connect these personality traits with intake of chili peppers,” said Professor John Hayes from Pennsylvania State University, who led the study.

But before you look at the study, you should first know that “spicy” is not a taste, unlike sour, sweet, bitter and salty. It is, in fact, a burning sensation that you feel on the surface of your tongue. This got scientists thinking that maybe a love of spicy food is brought about by people's longing for thrill, something they usually get from watching action movies or riding a roller coaster.

In the study, 97 participants, both male and female, were asked to fill out questionnaires about certain traits of their personality, for example. Whether they like new experiences or tend to avoid risks. They were then given cups of water with capsaicin(辣椒素), the plant chemical that makes chili burn, mixed into them.

By comparing the answers to questionnaires and what participants said they felt about the spicy water. Researchers found that those who most tended to enjoy action movies or take risks were about six times more likely to enjoy the spicy water.

    Interestingly, we used to believe that the reason some people can withstand spicy food is that their tongue have become less sensitive to it. However, this latest study has found otherwise. It's not that it doesn't burn as badly, it's that you actually learn to like the burn,” Hayes explained.  

    Since Abbi Hickman was just a little girl, she has been surrounded by animals. Chickens, cats, dogs, rabbits, and sometimes goats are just some of the animals she cares for. At the age of 9, Abbi went to the Tracy Animal Shelter，in her hometown of Tracy，California，to adopt Sheldon，her favorite cat. There，she saw the poor conditions that the animals were kept in. Abbi knew that it was her duty to take action.

    Pins for Pets is Abbi's solution. For the last three years, she has organized a bowling tournament to raise funds for the Tracy Animal Shelter. She has raised more than $30,000, resulting in a better home for the animals. “Now the shelter is nicer and cleaner and animals have more space. It is far better, a hundred percent better,” Abbi says.

    To praise Abbi for her outstanding efforts, the American Society for the Prevention of Cruelty to Animals (ASPCA) named her the 2015 ASPCA Tommy P. Monahan Kid of the Year. This award is given to kids who make a substantial (大量的) effort to help animals. Abbi responded to the news of her win with shock. “I was pretty excited. I' m really honored to receive it,” she says.

    Sacrificing time and effort to assist animals can sometimes be difficult, but Abbi hopes to do more. “I want to spread my free services to more shelters. I really just hope people are kinder to animals and respect them more,” says Abbi, sharing her goals for her organization.

    At the age of 12, Abbi has already accomplished so much. The advice she has for kids like her, who want to accomplish their goals, is, “Nothing is impossible. You can do anything you put your mind to. Even if it is something small, it can make a huge difference.” Abbi's work has improved the lives of animals, and she plans to keep coming up with new ways to help them.

    The park bench was deserted as I sat down to read beneath the branches of an old tree, with good reason to frown, for the world was intended to drag me down. At this time, a boy approached me. He stood right before me, and said with great excitement, "Look what I found!"

    In his hand was a flower, and what a pitiful sight, with its petals(花瓣)all worn. Wanting him to take his flower and go off to play, I faked a small smile and then turned to the other side.

    But instead of leaving, he sat next to my side and placed the flower to his nose and declared, "It really smells pretty and it's beautiful, too. That's why I picked it. Here, it's for you."

    The flower before me was dying or dead. But I knew I must take it, or he might never leave .So I reached for the flower, and replied, Just what I need.

    But instead of placing the flower in my hand, he held it in mid-air. It was then that I noticed that the boy was blind.

    I heard my voice quiver(轻微颤抖) and at the same time my tears shone like the sun. As I thanked him for picking the very best one, he smiled and said, "you're welcome." And then he ran off to play, unaware of the impact he'd had on me.

    I sat there and wondered how he managed to see a self-pitying woman beneath an old tree. Perhaps from his heart, he'd been blessed with true sight.

    Through the eyes of the blind boy, I could see the problem was not with the world; the problem was me. And for all of those times I had been blind. From now on I vowed to see beauty and appreciate every second that's mine. Then I held the flower up to my nose and breathed its fragrance and smiled as that young boy.

    The Hawaii Volcanoes National Park

    The Hawaii Volcanoes National Park, on the island of Hawaii, has two active volcanoes: Mauna Loa, which last erupted (喷发) in 1984, is 13,677 feet (4.17 km) above sea level; Kilauea is next to Mauna Loa and it has been erupting since January 3rd, 1983. It is 4,190 feet (1.23 km) above sea level.

    When to visit

    The park is open 24 hours a day all year round. There are no plants or trees on the lava (火山岩) fields and no protection from the sun, so you must bring sunscreen (防晒霜).

    How to get there

    The best way to get to the park is to take Highway 11. From the airport at Hilo, Highway 11 will take you southward across the eastern part of the island.

    Things to see

    If you want to know more about the park, the Kilauea Visitor Center is surely a stop to make. It is a quarter of a mile (402 m) from the park entrance. There, you can see a great movie about real lava and learn about the island's natural and cultural history. The center is open from 7:45 a.m. to 5:00 p.m. There are also many guided walks and hikes around the park. You must check weather conditions and volcanic activity before hiking alone. If possible, you may drive down Chain of Craters Road to see lava flowing into the ocean.

    Tickets

    Entrance to the park is $10.00 for each vehicle, $5.00 for those who travel on foot or ride a bicycle. Children under the age of 15 are free.

    Finding a suitable name for a baby is a big deal in China. When picking out a Chinese name, parents usually select two or three characters that have a carefully thought out meaning, but when deciding on an English name, many of them struggle. That's where Jessup and her company, Special Name, come in. In the last few years, Jessup has helped name 677,900 Chinese babies, and earned over $400,000 in the process, more than enough to pay her college fees.

    Jessup came up with the idea for Special Name in 2015, after accompanying her father on a business trip to China. One of her dad's business partners, a Mrs. Wang, asked her to help choose an English name for her daughter. Jessup felt honored and quickly realized the importance of choosing a proper name in Chinese culture. The woman wanted people to be surprised by the things her daughter could achieve, so Jessup suggested the name "Eliza" after the character Eliza Doolittle from the play Pygmalion. Mrs. Wang seemed delighted with Jessup's choice. "If Mrs. Wang needed this service, maybe other parents would as well," Jessup thought.

    After returning to UK, Jessup borrowed ￡1,500 from her parents and paid a web designer to build a website, She then spent her free time filling up a database(数据库)with around 4,000 English names, associating them with five major personality characteristics, like honesty and optimism.

    In the beginning, Jessup offered the service for free to promote the website, but later, she started charging fees. The business is almost completely self-sufficient, requiring only a small team in China that manages technical operations. She updates the database each month, allowing her to focus full-time on studies.

    Sweet potato plants don't have spines or poisons to defend themselves. But some have evolved a clever way to let hungry herbivores (食草动物) know they aren't an all-you-can-eat buffet, a new study finds. When one leaf injured, it produces a chemical that warms the rest of the plant and its neighbors to make themselves inedible (不宜食用的)to bugs. Sweet potato breeders could potentially engineer plants to produce the chemical as an all-natural pest defense.

    Plant ecologists led by Axel Mithofer of the Max Planck Institute for Chemical Ecology in Jena, Germany, started to look into sweet potato (Ipomoea batatas) defenses after they noticed something interesting about two varieties of the plant grown in Taiwan: The yellow-skinned, yellow-fleshed Tainong 57 is generally herbivore-resistant, but its darker orange cousin, Tainong 66, is plagued (造成麻烦) by insect pests.

    To find out why, the team offered up Tainong 57 and 66 plants to hungry African cotton leafworm caterpillars (毛虫).Both plants released at least 40 airborne compounds as the caterpillars snacked on their leaves. But Tainong 57 produced a lot more of a chemical called DMNT, which has a very distinct smell, the team details this month in Scientific Reports. ("The smell is not nice," Mithofer says. "You wouldn't want it as a perfume.")

    DMNT isn't a new compound; researchers have isolated (分离出) the smelly chemical from other plants such as corn and cabbage, and it is known to induce defense responses in some species.

    To determine whether this was happening in sweet potatoes, scientists set up two experiments. First, they put two plants next to each other and wounded one so it produced DMNT. Then, they exposed healthy Tainong 57 plants to DMNT they had synthesized (合成).In both cases, the DMNT caused the exposed plants to produce more of a protein called sporamin in their leaves. (Tainong 66 did not have the same reaction.) When the caterpillar's snack on sporamin, "they immediately stop eating because they don't feel well," Mithofer says.

    Sporamin is the main protein in sweet potato tubers (块茎),and is indigestible raw, which is why sweet potatoes must be cooked for humans to enjoy them. "If the caterpillars could cook it, they could eat it," Mithofer says. Theoretically, he says, sweet potato breeders could use genetic engineering to make different varieties of sweet potato produce as much DMNT as Tainong 57, and display the same defense responses.

    Still, the research isn't ready for prime time, cautions plant ecologist Martin Heil. DMNT might work in the lab, but in the field, airborne chemicals can be "blown away in seconds," says Heil, who studies plant-insect interactions at the National Polytechnic Institute in Irapuato, Mexico.

    Mithofer himself has no plans now to create genetically engineered sweet potato plants, because they would not be a viable (能活下去的) crop in Europe, where genetically modified crops are outlawed. So for now, Tainong 66 will have to put up with being a caterpillar salad bar.