2 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.

3 . On February 6, 2020, American astronaut Christina Koch arrived back on Earth after 328 days in space. Her time in space is just one of the records set by herself. That’s the longest spaceflight ever made by a woman, and just one of the many things Ms. Koch achieved in space.

Ms. Koch took off from Earth for the International Space Station (ISS) on March 12, 2019. While in space, she made 5, 248 trips around the Earth, travelling 2, 237 million kilometers, which is roughly the same as 291 trips to the Moon and back. During her 11 months on the ISS, Ms. Koch took part in six spacewalks, spending over 42 hours in all outside the station. In October of 2019, Ms. Koch led the first ever all-female spacewalk with Jessica Meir.

But for most astronauts, space travel isn’t about setting records. It’s about doing science. Ms. Koch took part in a wide variety of special experiments, including studying how crystals grow in space, how atoms behave in extreme cold and learning more about growing plants in low gravity. Growing plants in space could be an important way to provide food on future trips. She also tested a new way of separating liquids from gases. This experiment could lead to simple methods of cleaning water and air in space, which could be very important for future space travel.

Ms. Koch isn’t just a scientist and an astronaut. She is also being studied. She’s part of a NASA program studying how astronauts are affected by being in space for long periods of time. Her trip was only 12 days shorter than the American record set by Scott Kelly in 2016. As they did with Mr. Kelly, NASA scientists are looking carefully at ways Ms. Koch’s body has been affected by her time in space. That research is important for the longer space trips NASA hopes to make in the future, such as for a base on the moon or a trip to Mars.

5 . If you are someone who struggles with exam anxiety, know that you aren’t alone.

Some levels of stress are normal, and they do serve a purpose. Stress can improve your work performance, think more quickly and more efficiently.     1     These high levels of stress and anxiety have harmful effects on both your mental health and your performance. Fortunately, there are things that you can do to try and relieve this.

Simply being aware of what is causing your anxiety -can help to lessen the effects. Try to take some time to reflect on what could be causing your anxiety.     2     In terms of exam anxiety, it could be linked to a few different factors. For example, if you’re someone that tends to be a bit of a perfectionist, you might experience higher levels of exam anxiety.     3    .

Most of the time, the key to exam anxiety is making full preparations. Make an early start on your revision. Starting 6 weeks before the exam is usually recommended.     4     Take enough time to do yourself justice.

    5     Studying constantly will make you worn out, and you may even feel burnt out —long before you even get the chance to sit the exam. Make sure that you have at least one day off from revision a week. Take regular breaks for exercise to help keep your brain active. And always remember to eat nutritious, high-quality foods and drink enough water.

Hopefully, you will be free from exam anxiety in the future.

Yours

Li Hua

7 . Because people dine out often, there are lots of restaurants in Italy. Most of them are Italian, of course.. _________ , today the European country also has many ethnic(民族风味的) restaurants. Al Borgo Antico in Legnano, a town on the outskirts(城郊)of Milan, is_________ It offers traditional Italian food, but its owners are_________ .In 1989, co-owner Francesco Wu moved with his _________ from China to Italy. His parents opened a Chinese_________ near Milan. “When you move to a different country, you have to_________,”Wu told me during a recent interview. At the beginning, the business was_________ for the brothers. They had to_________ prejudices and the people who said that no one would eat Italian cuisine made by Chinese chefs. “It was_________ when people came in and saw our Chinese__________ and left, ”Wu said.

The brothers__________ it despite all of the doubts,“ __________, the restaurant became one of the best-known in the area,”Wu said, smiling.

In 2012, eight years after opening his restaurant, Wu__________ a business organization for Chinese immigrants(移民).“We__________ that something like this was missing, and that it could be__________ for both the Italian and Chinese community. ”Wu said.

10 . Are you new to experiencing relationships? Well, let me give you advice on how to have a healthy relationship with your partner.

Be an honest person with them. Do not hide things from them, do not lie. Don’t be afraid to say things that isn’t very flattering about yourself. Getting them to trust you is the most important element in any relationship. If there’s no trust, there’s nothing there.     1    

Make sure you give them respect. Now respect isn’t just simply treating her or him nicely.     2     You have to learn to adjust to their liking. Basically, learn to study your partners moods, wants, and needs.

Don’t just think about yourself, think about what your partner needs out of it as well. Make sure you are encouraging to your partner. Always be willing to help them and give them honesty and positivity at the same time. Make them feel you are someone they can really count on and build a future with.     3    

Make sure you have a good sense of humor with them. Laughter is the key to happiness. Laugh a lot with them, joke with them. Laughter may seem silly, but it’s the secret to a lot in life. It will keep the sparks alive.     4    

Make sure the communication is good. This usually goes along with trust, but always communicate how you feel, even if it’s something that upsets you.     5     If they did something that made you unhappy, tell them about it in a respectful manner. It’s important to communicate this to them, not keep it bottled up.