Is sleep important to children？A new study says yes.

A new study published this week shows that children who do not get _____ sleep have less control over emotions and are less focused at school.

The National Sleep Foundation _____ 10 to 11 hours of shut-eye per night for children aged between 5 and 12. About 41 million American workers get less than six hours of sleep per night. Now health experts _____ that adults are passing their poor sleeping _____ down to their children.

Reut Gruber is a lead author of the new study. In the study，Gruber and other experts either added or reduced one hour of sleep for _____ children aged 7 to 11. They _____ the children over five nights. The _____ was to see if small changes in the amount of sleep could _____a child's behavior.

“The findings show that for children small changes can make a big _____，and that is why this is meaningful.”

Before the survey began, students were _______to sleep the same amount of hours as they ______ would. Their teachers were asked to ______ the children on thoughtfulness, touchiness and emotional reactions. After five nights of the kids' sleep change, the teachers were asked to take the survey again. ______ their original scores, those who slept one hour less had ______ behavior scores than those who were allowed to sleep an hour more.  Students with less sleep were more annoyed, frustrated and had more problems which need paying ______ to.  The children with more sleep showed ______ in these areas.

“______ less sleep leads to a drop in attention in class, children may ______ on learning and chances to be ______. If they are easily annoyed and frustrated because their bodies and brains are ______, they may not learn as much either,”says Gruber.

   What’s your opinion on spicy food? Some people cannot handle even the smallest amount of chili peppers in their dinner while others can’t get enough of them.

Scientists have long been puzzled by why some people love the chili while others loathe it. Plenty of research has been done on the subject, dating as far back as the 1970s. Previous results showed that a love of chilies is related to childhood experiences, and that cultural influences affect our taste too. But the latest study has found that a person’s love of spicy food may be linked to his or her personality (性格) 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 personality with intake of chili peppers,” said Professor John E. 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 taste. It is, in fact, a burning feeling 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 their personality, for example, whether they like new experiences or tend to avoid risks. They were then given a glass of water with capsaicin (辣椒素), the plant chemical that makes a chili burn, mixed into it.

By comparing the answers to the questionnaire and what participants said they felt about the spicy water, researchers found that those who 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 why some people can withstand (耐受) spicy food is that their tongues have become less sensitive to it. However, this latest study has found otherwise. “It’s not that it doesn’t burn as badly, but that you actually learn to like the burning feeling,” Hayes explained.

   It is a familiar scene these days: employees taking newly laid-off co-workers out for a drink for comfort. But which side deserves more sympathy，the jobless or the still employed？On March 6，researchers at a conference at the University of Cambridge suggested it was the latter.

Brendan Burchell，a Cambridge sociologist，presented his analysis based on various surveys conducted across Europe. The data suggest that employed people who feel insecure in their jobs show similar levels of anxiety and depression as those who are unemployed. Although a newly jobless person's mental health may“bottom out”after about six months，and then may even begin to improve，the mental state of people who are continuously worried about losing their own job“just continues to get worse and worse”, Burchell says.

Psychologists support this theory by arguing that human beings feel more stressed during times of insecurity because they sense an immediate but invisible threat. Patients have been known to experience higher levels of anxiety, for example, while waiting for examination results than knowing what they are suffering from—even if the results are cancer. It's better to get the bad news and start doing something about it rather than wait with anxiety.  When the uncertainty continues, people stay in a nonstop“fight or flight”response, which leads to damaging stress.

But not every employee in insecure industries has such a discouraging view, Burchell says. In general, women get on better. While reporting higher levels of anxiety than men when directly questioned, women score lower in stress on the 12-item General Health Questionnaire, even when they have a job they feel insecure about losing.  As Burchell explains,“For women, most studies show that any job—it doesn't matter whether it is secure or insecure—gives psychological improvement over unemployment.”He supposes that the difference in men is that they tend to feel pressure not only to be employed, but also to be the primary breadwinners, and that more of a man's self-worth depends on his job.

   You probably have a first-aid kit at home for your family—but what about your family pets？You need to be ready if your furry friend faces an emergency at home. What's more，as the weather gets warmer，more pet owners take their pets with them when they leave the house—on vacation，to the park，jogging，hiking and even swimming. That can be fun for you and your pet，but there's a chance that your pet will get hurt there，as well. So，it's important to know some of the basics of first aid for your pet if necessary.

If your pet is exposed to long periods of heat and sunlight，she will be easy to get heat exhaustion（衰竭）or heatstroke. Signs of heat exhaustion are breathless，anxiousness，dry gums and red skin most easily seen on the ears.

If either of these occurs，cool the pet right away and，as always，get her to the vet（兽医）.Put the animal in a shaded or air-conditioned area，and wet the body with cool water. Rubbing isopropyl alcohol（异丙醇）on the belly and fanning the area will help drive away the heat. If a pet is suffering from heatstroke，don't try to give her water. Get her to the vet immediately.

If you see an animal that's been hit by a car，or you hit one accidentally，first be cautious of all oncoming traffic before trying to reach the animal. Approach carefully. Even a severely injured animal can bite you.

As someone helps with directing traffic, cover the animal with a blanket or towel. If the animal cannot stand on her own, there's a good chance that there are neck, back or head injuries, so try to gently transfer the animal to a flat surface. Then transport that flat surface to the nearest vet. Picking up or hand-carrying the animal may worsen the injuries.

   Darek Fidyka, a 38-year-old Bulgarian, had been paralysed（瘫痪的）from the chest down for four years after a knife attack. Scientists from Britain and Poland took cells from his nose, transplanted them into his back and regrew his spinal cord （脊髓）. Now he can walk and even drive a car. The doctors were delighted but said it was the first step in a long journey.

The breakthrough came after 40 years of research by Professor Geoff Raisman, who found that cells had the possibility to repair damage to nasal （鼻子的） nerves, the only part of the nervous system that constantly regrows. “The idea was to take something from an area where the nervous system can repair itself, and put it into an area that doesn't repair itself,” Professor Raisman said.

Polish doctors injected the nasal cells into Mr Fidyka's spinal cord above and below the injury and used some nerves from his ankle to form a bridge across the damaged tissue. The nasal cells appear to have caused the spinal nerves to repair themselves.

Professor Raisman achieved this with rats in the late 1990s, but this is his greatest success. “I think the moment of discovery for me was Christmas in 1997 when I first saw a rat that couldn't control its hand put its hand out to me. That was an exciting moment, because I realized then that my belief that the nervous system could be repaired was true. ”

Doctors chose the easiest case for their first attempt — it might not work for others. But there is a real sense of hope that an idea once thought impossible has been realized.

David Nicholls, who helped provide money for the breakthrough, said information about the breakthrough would be made available to researchers across the globe.

“What you’ve got to understand is that for three million paralysed people in the world today, the world looks like a totally brighter place than it did yesterday,” he said.