【推荐1】Many people fear a visit to the dentist. They are not so much afraid of the doctor, but of the dental equipment and treatments. For over a century, dentists have been repairing the bad tooth in the same way. They first remove the bad tooth tissue with an electric-powered drill. Then, they fill the hole with a certain material. If the hole is deep and near the nerve of the tooth, it can be very painful. The worst part is that the process of drilling and filling the hole has to be repeated for the entire life of that tooth.

A British company called Reminova says it has developed a kind of technology that will end the need for mechanical cleaning of bad teeth. It also says the technology speeds up a natural process of tooth repair. The new treatment begins with a cleaning of the hole. This does not require power tools. The dentist covers the problem area with a mineral solution, and then uses an electrical current to harden this material. The electricity is too weak for the patient to feel. And the hardened mineral completely fills the hole.

Researchers say this method could be especially useful for children. Sometimes children have bad experiences at the dentist’. They fear the drilling and injections. If they have a better experience of going to the dentist’, they’ll be much more positive in later life and probably become much more regular patients. The new method is most efficient on the early-stage bad tooth. The whole treatment lasts about as long as a normal drill-and-fill visit. They believe the new technology can be further developed for treating the late-stage bad tooth.

【推荐2】The world’s biggest COVID9-9 vaccine (疫苗) study started on Monday. A total of 30,00 volunteers will help test the effectiveness and safety of a shot developed by the National Institutes of Health and drug maker Moderna.

The volunteers will each receive two doses (剂量) of a shot. They will not know whether they are getting the real vaccine or false version (版本) Scientists will then closely follow the volunteers as they go about their daily activities. They want to see which group experiences a higher rate of infections (感染), especially in areas where the virus still is spreading unchecked.

Volunteers from more than 80 test areas across the country will take part in the study. Moderna said the first vaccines were given Monday morning in Savannah, Georgia. The U.S. government requires its tests of any vaccine that might be used in the country. The aim is not just to test if a vaccine works, but also to check if it is safe.

Through the government-funded COVID-19 Prevention Network, the U.S. plans a new study for vaccine candidates (候选人) each month through autumn. Each will involve30,000 newly chosen volunteers. The hope is that, by using the same rules for each study, scientists will be easily able to compare the vaccines. In August, the U.S. will carry out its final stages of Oxford University’s vaccine candidate. The study of Johnson & Johnson’s vaccine will start in September. Drug maker Pfizer also plans to carry out its own 30,000-person study this summer.

That is a lot of volunteers needed to test possible vaccines. But in recent weeks, more than 150,000 Americans have registered to volunteer for the studies, says Dr. Larry Corey. He is with the Fred Hutchinson Cancer Research Institute in Seattle, Washington. It normally takes years to create a new vaccine from start to finish. But this time, scientists are setting speed records.

【推荐3】Once a month, I volunteer at a meal center to help serve food to people who are in need. Despite the many other things that I need to do, I really look forward to meeting and serving these people, even if only briefly. Although my motivation begins with wanting to help others and be grateful for what I have been given, it is joy that helps bring me back when I am very busy. I first noticed this some time ago: at the end of our shift, after the kitchen and dining room have been cleaned up, I would experience a lightness of being.

A few years ago, as I was researching how kindness affected health, I came to learn that volunteerism was associated with a markedly lower risk of dying. One recent and large European study found that self-reported health scores were apparently better in volunteers than non-volunteers. Depending on the study, the decrease in death rates ranged between 20 to 60 percent or so.

How could volunteering decrease the risk of death? There are several factors at play. The first, and most primary, is decreased symptoms of stress and uplifted mood. Many studies have provided evidence that volunteering is good for depression, well-being, and social networking, among other effects. Secondly, people who volunteer regularly also make more effort to take care of themselves. They manage to pay visits to their doctor for preventive health care. Finally, people who volunteer may be more physically active. Volunteers have an obvious increase in walking each day compared to those who did not volunteer.

To try to tie this together, volunteering likely exerts its positive health effects by connecting people to others and to an activity that they find meaningful. Achieving connection, purpose, and meaning is critical to reducing stresses of life — particularly loneliness. Since stress is a major cause of disease, especially heart disease, the ability to satisfy the need for connection, purpose, and meaning can bring about beneficial changes for people. And when there is purpose and we are connected to others, we take care of ourselves.

【推荐1】Visitors to Hot Springs National Park in Arkansas really follow the crowd. The park contains 47 hot springs. And tourists can take relaxing soaks at a bathhouse in the park that uses warm water from the nearby hot springs.

Great Springs

At 5,550 acres, Hot Springs National Park is the smallest national park in the United States. People have been coming to the area for hundreds of years to enjoy its natural hot baths. Starting in the 19th century, several bathhouses that offered baths with spring water opened in the region. Many visitors with illnesses went there, believing that the waters could help cure (治愈) them.

The area became a national park in 1921. People aren’t allowed to take baths directly in the springs. But you can still visit the one bathhouse that remains in operation at the park. You can also drink the spring water from special fountains (喷嘴式饮水器) around the park. And don’t worry about burning your tongue. When the water flows from the ground into the pools, it’s very hot. But it cools before reaching the park’s baths and fountains. 

Home at Hot Springs

Besides the springs, visitors to the park can also see some pretty cool wildlife. Sounds like there are a lot of ways to have fun at Hot Springs National Park!

Fees & Passes

There is no entrance fee for the park.

Camping Fees

Your stay is limited to 14 days at a time. Longer stays require you to move to a different campground outside of the national park. All sites can be used for tent camping. All sites are $30 per night or $15 per night with a Senior Pass or Access Pass card. Senior and Access passes can be bought at the park store.

【推荐2】Are you looking for somewhere special to go this weekend? Do you want to try something new? Check out one of these hot new restaurants.

Your Local Caff

Remember when cafes served full English breakfasts sausages, beans, fried bread, bacon and eggs—with a strong cup of tea? Well, this place sill does and you can have your breakfast at any time you like during the day while you listen to your favourite tunes from the 1980s.

A Taste of Tuscany

Whether you'd like a great value-for money lunch or a relaxed evening meal in stylish surroundings, this is the place for you. The chefs have all been trained in Italy and they make both traditional and contemporary dishes. We recommend the pasta and seafood.

Cheesy Bites

A restaurant that only serves cheese, but hundreds of cheeses from many countries and in lots of different forms. They serve reasonably priced lunches but dinner can be expensive. Lovely food and a very elegant dining room, looking onto an amazing flower garden.

The Chocolate Box

The owner of this small cafe used to cook all kinds of food, but then she realised she preferred desserts to anything else. If you want meat or fish, don't come here. They only do desserts! Lots of different sweets. Chocolate lovers will be excited by the range of chocolate cakes.

Last Days of the Raj

A centrally located Indian restaurant, perfect for eating before or after the cinema or a show. In summer enjoy your meal in the beautiful garden. The most popular dishes are lamb and chicken cooked with mild, medium or hot spices. For brave customers there is extra hot!

【推荐3】It’s not easy to grow up. Actually it’s far from easy. Growing up can be a real “pain” for some of us. We are always doing things that someone else makes us do and aren’t allowed to do all the things we like. Sometimes we feel trapped, sometimes we are fearful, and sometimes we just don’t understand why we can’t stay young forever. When we look back on all the hardships in life with a positive attitude, we realize that all of our growing pains actually turn into growing gains!

As a young girl my parents forced my sisters and me to do so many things that I never liked. They made me learn to play the violin and then the piano. At that time I hated music, just because it was what they wanted me to do. But looking back now, I am so glad that my parents encouraged me to take music lessons. Music has enriched my life in so many ways. I realize that my parents and teachers were always pushing me along, not because they wanted me to suffer but because they wanted me to succeed in life. They’ve always wanted me to have a better life than they did themselves.

Every moment of our lives we are either living or dying, so live life to its fullest! We are all going to experience growing pains, but they are just small pains in life. They might seem so huge at the time but we must be strong. Think about how we would feel if we had no fear and live life like that. The future is ours!

A little hard work and sweat never hurt anyone! If we realize that these pains are just small bumps （凸块） on our road to success we will realize that our growing pains are actually growing gains!