Beautysleep is a real thing, researches have shown that people who have enough sleeplook more attractive (有魅力的) to others.

    A few badnights are enough to make a person look especially "more ugly", theirsleep experiments show.

    Theresearchers asked 25 university students to join in their sleep experiment.They were asked to get a good night's sleep for two nights.

    A weeklater, they were asked to sleep for only four hour every night for two nightsin a row. The researchers took make—up free (素颜) photos of the volunteers afterboth the good and the bad sleep.

    Next, theyasked 122 strangers to have a look at the photos and judge (评价) them on attractiveness, health,and sleepiness, as well as asking them: "How much would you like to makefriends with this person in the picture?"

    Thestrangers were good at judging whether the person they were looking at wastired, and if he was sleepy, his attractiveness score would be low.

    Thestrangers also said they wouldn't want tosocialize with the tiredstudents. The researchers say this is natural for people. An unhealthy-lookingface makes people run away. In other words, people don't want to hang aroundwith people who might be ill.

    Dr Brewer,an expert at the University of Liverpool said: "Judgment of attractivenessis often unconscious (无意识的), but we all do it, and we are able to judge on even somethingsmall like whether someone looks tired or unhealthy. This study is a goodreminder of how important sleep is to us."

Do you know"cosplay"? It is the activity of dressing up as a fictitious (虚构的) character from cartoons, books, films, video games or TV shows. Some people spend a lot of money buying clothes, but many more enjoy making clothes by themselves in order to show their love for those fictitious characters.

Cosplay needs a lot of work. Here are some steps(步骤) in how to prepare for a cosplay:

●Plan your cosplay. You should choose a character you like. It's also important to find pictures with almost every detail(细节) of the character.

•Make or buy your cosplay clothing. You'd better make a list of everything you need. Sometimes, you may need to change the size of the things like the shoes or the dresses you get.

●Pay attention to making up and haircut. You should find someone to make you up. You should also have the same haircut as the character you want to cosplay.

Have fun doing your cosplay. You needn't compare yourself with anyone else. You should feel proud of the work you do. Maybe you can also make some new friends there.

There are many ways to manage (管理) time. A clock plays an important role in time management. It can help us make our goals (目标) come true. We can use it in many parts of our life and it helps us say no to wasting time. The following ways can help us get started.

Learn about the meaning of 30 seconds. For example, if your house is very dirty, think about this. Failing to (未能做) hang up a coat and keep a desk or room tidy happens when we leave out (忽略) the quick housework. We can play a game to see if we can build a clean and comfortable environment in 30 seconds.

If possible, exercise at a certain time. For example, exercise at 7:00 a.m. and have breakfast at 8:00 a.m. every day. Also, we can ride a bike, run slowly or go for a quick 15-minute walk twice a day. The 15 minutes seems like a short time, but if we keep at it, it can make a difference to our health.

Go to bed and wake up on time. This is the most important way and it makes us full of energy (能量). It also makes us healthy and benefits our study and work.

Pairing every goal in life with a clock makes it easier to come true. We should learn to manage time and make full use of every minute.

It happens every spring. Flowers come out everywhere on the same day. But how do plants "know" when to flower?

For years, it has been a difficult question for scientists. But a US research group may have finally answered it—the secret lies in a protein(蛋白质)called FKF1. This helps plants to know when the days become long and when they get short. Then they can tell the seasons(季节)are changing.

Researchers found the FKF1 protein when they were studying a plant called Arabidopsis. It is sensitive(敏感的)to sunlight, and can be made active by sunlight.

Plants produce this protein every day in the late afternoon all year. If there is no light at this time, for example, in winter when the sun goes down early, the protein won't be active. But when spring comes and the days get longer, the FKF1 protein can be made active by day light and the plants "know" it is time to flower. " If there is light in the late afternoon, plants will know that the days are getting longer and that it is the best time for flowers to come out,"explained Takato Imaizumi, leader of study. But when conditions are poor for growing, such as during autumn or winter when the weather is cold and days are short, plants won' t flower.

Although researchers have only studied how the FKF1 protein works in the Arabidopsis, they believe that it is the same with many other plants, including crops such as rice and wheat.

"If we can control when flowers come out, we might be able to increase crop production," Imaizumi said.