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.  

    The bed should be reserved as a place for sleep, but people tend to read an iPad a lot in bed before they go to sleep.

    Charles Czeisler, a professor at Harvard Medical School, and his colleagues got a small group of people for an experiment. For five days in a row, the people read either a paper book or an iPad for four hours before sleep. Their sleep patterns were monitored all night. Before and after each trial period, the people took hourly blood tests to paint a day-long picture of just how much melatonin (褪黑激素) was in their blood at any given time.

    When subjects read on the iPad as compared to the paper books, they reported feeling less sleepy at night and less active the following morning. People also took longer to fall asleep on the iPad nights, and the blood tests showed that their melatonin secretion (分泌) was delayed by an hour and a half.

    The researchers conclude in today's journal article that given the rise of e-readers and the increasingly widespread use of e-things among children and adolescents, more research into the long-term consequences of these devices on health and safety is urgently needed. Czeisler and colleagues go on, in the research paper, to note：“Reading an iPad in bed may increase cancer risk.”

    However, software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day, and there are also glasses that are made to filter (过滤) short wavelengths. While they seem like a logical solution for the nighttime tech users, it needs more research.

    My senior years, I can't believe it is almost over. Now when I look back, it was stressful, but exciting, the ball, graduation, and then of course, college.

    I started applying for my college months before Christmas. My parents told me it would be smart if I set up interviews and tours. But I wasn't motivated. I wanted to go to college, but I didn't want to deal with the stress.

    As the days flew by, my applications lay on my desk just as I had left them three months before. “You are wasting valuable time,” my parents complained. Sweeping away the gathered dust on the applications, I worked on them every Sunday until I finished. Next came writing the essays. I had many ideas, but every school had different requirements. I changed them until I was pleased. Finally, everything was underway.

    Now I just had to wait. In March, I started receiving letters of rejection. I began to think that I had set myself up for disappointment. I had a letter from Salem State College starting that they wanted to see my grades before they made their decision. Yes! At least someone wanted to consider me. At the beginning of April, I received a letter from Keens State. Those opening words: “We regret to inform you…” made me sit down and cry. I had lost all hope. Then I heard from Plymouth State. Not my first choice, but…I had been accepted. Maybe if I get my grades up, I can choose another school…

    The college application hurt me deeply. All my friends had dozens of schools to choose from. I guess my parents were right. High school grades are undoubtedly important to your future plans. If I could do it all over again, I would take it more seriously.

    Many people, both men and women in the world love drinking. The popular wisdom for years has been that drinking in moderation (适度) —that's one “standard” drink a day for women and two for men—is linked to a lower risk of cardiovascular (心血管的) disease. But recent studies are casting some doubt on that long-held learning. Science now says it depends on your age and drinking habits.

    A 2017 study of nearly 2 million British with no cardiovascular risk found that there was still a modest benefit in moderate drinking, especially for women over 55 who drank five drinks a week. Why that age? Alcohol can influence the substance in the blood in positive ways, experts say, and that's about the age when heart problems begin to occur.

    Also, a 2018 study found that drinking more than 100 grams of alcohol per week—equal to roughly seven standard drinks in the United States or five to six glasses of wine in the UK—surely increases your risk of death from all causes and in turn lowers your life expectancy. Links were found with different forms of cardiovascular disease, with people who drank more than 100 grams per week having a higher risk of stroke, heart failure.

    Another 2018 study found that consistently drinking moderately, within the recommended amount of alcohol, had a protective effect on the heart over time. Unstable drinking habits were associated with a higher risk of heart disease, which the authors reflected might indicate broader lifestyle changes, such as poor health or stress. Former drinkers were also at greater risk.

    Overall, however, the latest thinking is that any heart benefit may be outweighed by other health risks, such as high blood pressure, certain cancers and liver damage.

    Women who drink are at a higher risk for breast cancer; alcohol contributes about 6% of the overall risk, possibly because it raises certain dangerous hormones in the blood. Drinking can also increase the chance you might develop liver, mouth and oral cancers. One potential reason： Alcohol weakens our immune systems, making us more likely to inflame (发炎)—a driving force behind cancer.

    Fantasy as a genre is often unfairly wronged. While there are plenty of authors who seem to be paid by the word and are only concerned with expanding volume, there are many authors producing fantastic works that are worthy of the word literature. While there were many worthy competitors, here are what we consider to be the great work of the greatest fantasy series of all time.

    ①The Dark Tower by Stephen King

    The Dark Tower actually shares some similarities with The Wheel of Time. In both series the first four books are the strongest, and you also get the sense with both Robert Jordan and Stephen King that they didn't quite know how to end their creation, which led to a very controversial ending in The Dark Tower's case along with some questionable decisions by King like his self-insertion in the story.

    King has created one of the most iconic fantasy characters of all time in the Gunslinger Roland and the world he creates, with all of its similarities to our reality, is a prosperous one. It's too bad that Stephen King doesn't dabble(涉猎) more in fantasy, because he clearly has a talent for world building. Not to mention everything he writes seems to be phone book sized, which would fit right in with the fantasy genre.

    ②Harry Potter by J.K. Rowling

    When considering a ranking of the greatest fantasy series of all time, the question of Harry Potter is a tricky one. There's inevitably opposition when something is as popular as Rowling's work, and add to that the fact that the series is seemingly meant for children and you have a case that naturally inspires a lot of debate. I'm not sure I believe Rowling did anything particularly new with Harry Potter, but a work doesn't necessarily have to be innovative for it to be great. Nearly every fantasy series owes a debt to Tolkien for instance, but that doesn't mean Tolkien has written the only work of fantasy that matters. Rowling didn't really come up with anything new, but the connection she made with tens of millions of readers is praiseworthy. People will be reading Harry Potter for decades to come, and I'm not sure a better introduction to fantasy could be found.

    One summer I was driving from my home town of Tahoe City, Calif., to New Orleans. In the middle of the desert, I came upon a young man standing by the roadside. He had his thumb out and held a gas can in his other hand. I drove right by him. There was a time in the country when you'd be considered a jerk if you passed by somebody in need. Now you are a fool for helping. With gangs, drug addicts, murderers, rapists, thieves lurking everywhere, "I don't want to get involved" has become a national motto.

    Several states later I was still thinking about the hitch­hiker. Leaving him standing in the desert did not bother me so much. What bothered me was how easily I had reached the decision. I never even lifted my foot off the accelerator.

    Does anyone stop any more? I wondered. I recalled Blanche DuBois's famous line: "I have always depended on the kindness of strangers". Could anyone rely on the kindness of strangers these days? One way to test this would be for a person to journey from coast to coast without any money, relying solely on the good will of his fellow Americans. What kind of Americans would he find? Who would feed him, shelter him, carry him down the road?

    The idea intrigued me.

    The week I turned 37, I realized that I had never taken a gamble in my life. So I decided to travel from the Pacific to the Atlantic without a penny. It would be a cashless journey through the land of the almighty dollar. I would only accept offers of rides, food and a place to rest my head. My final destination would be Cape Fear in North Carolina, a symbol of all the fears I'd have to conquer during the trip.

    I rose early on September 6, 1994, and headed for the Golden Gate Bridge with a 50­pound pack on my back and a sign displaying my destination to passing vehicles: "America".

    For six weeks I hitched 82 rides and covered 4,223 miles across 14 states. As I traveled, folks were always warning me about someplace else. In Montana they told me to watch out for the cowboys in Wyoming; in Nebraska they said people would not be as nice as in Iowa. Yet I was treated with kindness everywhere I went. I was amazed by people's readiness to help a stranger, even when it seemed to run contrary to their own best interests.