Diet and way of life are often a problem for teenagers.     1    , the good news is that you can feel better and have more energy if you eat the right food and exercise regularly.

Healthy eating along with regular exercise is     2    (actual) the only way to become fit. Diets are not     3    (suit) in the long term, yet about 20% of teenagers say they have tried going on a diet and been fooled into     4    (quit) meals to control their weight.

As a teenager, it is important to give your body the energy it needs. Exercise is something     5     can help to make you look good, feel good and be healthy. Many teenagers are     6    (confuse) to learn that your body produces some     7    (chemical) that make you feel peaceful and increase your ability     8    (concentrate) when you study.

A good amount of sleep every night is also important for your health. When you sleep, your body prepared you for the day to come. As a matter of fact, loss     9     sleep can make you look tired.

If you follow the suggestions above, you     10    (look) and feel much better in no time at all.

According to a review of evidence in a medical journal, runners live three years     1     (long) than non-runners .You don't have to run fast or for long     2     (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of     3     (die) early by running.

While running     4     (regular) can't make you live forever, the review says it is more effective at lengthening life than walking, cycling or swimming. Two of the authors of the review also     5     (make) a study published in 2014     6     showed a mere five to 10 minutes a day of running reduce the risk of heart disease and early deaths from all     7     (cause) .

The best exercise is one that you enjoy and will do. But otherwise... it's probably running .To avoid knee pain, you can run on soft surfaces, do exercises to     8     (strength) your leg muscles (肌肉) ,avoid hills and get good running shoes. Running is cheap, easy and it's always     9     (energy) .If you are time poor, you need run for only half the time to get the same benefits as other sport, so perhaps we should all give it     10     try.

All sports people are under a lot of pressure to win. In the past, athletes only trained to get physically fit. Today, sports psychologists use scientific techniques     1    (help) athletes get spiritually fit too.

British player Johnny Wilkinson described some of the pressure he     2    (feel). He played very well at the 2003 World Cup but after that he couldn’t play well. He found that he had a terrible fear of failure. With the help of sports psychologists, he realized that reality changes     3    (depend) on how we look at it and then everything went better.

In team sports, psychologists help players in different ways, one of     4    is to create a team spirit. “A team     5    (make) up of a certain number of players, just like a monster with many heads. It’s very difficult to get all of players, who have different     6    (personal), to think in the same way,     7    when you see a team that works as a unit, everything happens     8    (easy),” said Professor Dave Collins, a sports psychologist. “When there is a team spirit, the players all take responsibility and also they don’t blame individual players     9    mistakes. In this way, they all feel more confident and can concentrate better, and so the achievement is     10    (great) too. ”

There is a growing interest in rock climbing. Recently there    1    (be) an improvement in technology and techniques to perform it. The sport is getting more    2    (attract) to many people. Although rock climbing has risks and physical challenges, people still have several reasons to take it up.

Some sportsmen feel that rock climbing can never become boring. This is because you have different places to go climbing. Additionally, there are several challenging routes to climb. If you are tired    3    walls at your location, you may visit elsewhere    4    (experience) other challenging walls.

    5    (obvious), it offers great fun and adventure to people when they go high up on walls. When they push themselves beyond the expected limits, they get    6    sense of achievement. Many people feel that rock climbing also gives them a feeling of    7    (free), as they can go wherever they want.

There are many sportsmen    8    also lake rock climbing as a physical challenge where they always move up the levels. After    9    (cross) a set level, they move to the next and then to the next. And they can always give a fight to their previously achieved    10    (goal). It all depends on their physical fitness and skill levels.

At a gymnasium in downtown Beijing, a group of young enthusiasts are training and practicing the     1    (tradition) martial art of shuai jiao, which is native       2    China. The style of close combat fighting, also     3    (know) as Chinese wrestling, dates back thousands of years. It     4    (consider) by some experts as the origin of modern throwing sports such as judo. In recent years it has started to regain popularity with martial arts practitioners in the capital.

Hu Wannian started practicing shuai jiao at the age of 6. In 2016, he founded a wrestling club,     5    helped him promote the martial art at     6     open area in his residential complex in Beijing. At first, the tough conditions stopped many parents from     7    (allow) their children to join Hu's club. So far, the 62-year-old     8    （train) 50 students.

Yang Fan,28,is one of Hu's female     9    （student).“Very few girls practice Chinese-style wrestling," she said."But it has     10    （great) improved my athletic ability."

Although Laughter Yoga definitely includes some yoga, don’t expect it to have much in common with the yoga classes    1    (offer) at your local studio or gym. It promotes the use of laughter as a form of physical exercise, attaching    2    (much) importance to the former than to the latter.

Laughter Yoga    3    (create) in the mid-1990s as a social experiment. In 1995, Dr. Madan Kataria called on a group of students in a park    4    (test) whether adding regular laughter to people’s lives would improve    5    (they) well-being, Kataria also introduced deep breathing and simple yoga moves    6    the exercises.

Medical research     7    (suggest) that language is a good way to reduce stress and help people feel good. Kataria Laughter Clubs are popping up in response to people’s need to handle     8    (press).

Kataria also offer books and DVDs to people     9    don’t have access to a local Laughter Club. However，connecting with other humans is    10    big part of Laughter Yoga’s success in helping people feel better and experience more joy.

Imagine staring up and seeing a high wall of rock. You take a deep breath and start climbing. You put your hands，feet and knees into small holes and cracks     1     the rock and slowly make your way to the top. As you go higher your body gets tired，but you keep climbing. You seek     2    （forget）about the pain and the fear until you reach the top.

While rock climbing is     3     extreme sport，most people use ropes and a harness （背带）to stay safe. The ropes will catch you if you fall.     4     others，like 31-year-old US climber Alex，make rock climbing even     5    （crazy）. He climbed it without ropes，a harness，or even a helmet. If he     6    （slip） and fallen，he would have died.

Not everyone     7     does rock climbing is as crazy as Alex. Many a person     8    （do）it safely，or on special indoor walls. It is a great way to build strength. According to The Huffington Post，working out the best way to climb up a wall also helps you develop your problem-solving skills. But Alex says most     9    （climb）do it for the same reason. "I think the sport makes you powerful，" he said. "     10    （overcome） your own fears all the time helps deal well with life's other challenges. "

On a quiet morning, about 70 people were practicing the ancient art of tai chi, outside of the library in Salt Lake City, Utah. They are not    1     well-trained   group of exercisers,   but rather a class of participants who are    2    (most) homeless. The class focuses    3     (little) on mastering the exercise and more on    4    (build) a community. People have said the class relieves their stress, encourages them to get into a routine and make new friends.

Bernie   and Marita Hart, a    5    (retire) couple, began to run the free program   three years ago. They started it by approaching   homeless people    6     were pushing grocery carts near the Salt Lake City Public Library and inviting them to try    7     Hart said her   favorite part of the program has been watching the friendships among participants. They love seeing the positive impact the class    8    (have) on people's lives.

When the Harts are out of town, tai chi does not stop. Attendees take turns teaching the classes.

"Homeless people    9    (tell) what to do every place they go, but we want to encourage them   to   be    10    (leader)," Bernie   Hart   said. "They   don't   need   sympathy,   they   need something that works."

Kip Keno, an untrained Randi tribesman, was already 28 years old,     1     he made his second Olympic appearance at the 1968 Mexico City Games. Suffering from violent stomach     2     (cause) by a gall bladder infection, Keno entered the 10,000 m. He was running with the leaders when, with two     3    (circle) to go, he doubled up with pain and fell onto the field. He jumped back up and finished the race,     4     he was canceled qualification for leaving the track.

Four days later, he earned a silver medal in the 5,000 m,     5     (leave) behind Mohamed Gammon of Tunisia by narrowly a metre. In the 1,500 m, Keno tried to defeat the finishing kick of the favourite, Jim Ryan, by building up a huge lead. His strategy worked and he     6     (win) by 20 m, the     7    (large) advantage of victory in the history of the event.

In 1972, Keno entered the steeplechase (障碍赛) even though he had little experience in     8    event. Still, he was able     9    ( defeat) teammate Ben Jericho and won another gold medal. Six days after this victory, he added a silver medal in the 1,500 m, winning a good medal.

Keno and his wife, Phyllis,    10     (eventual) established a children's home and school for orphaned and abandoned children.

According to a study published in the UK recently, those who like jogging and do this kind of exercise     1     (regular) for at least one hour a week have very high chances to live a longer life. The study's Danish researchers convinced     2     (convince) that choosing this kind of physical activity can bring us a priceless reward,     3     is 5 to 6more years of life! Moreover, to achieve better results, the researchers suggest     4     (limit) yourself to gentle jogging rather than fast-pace and tiring distance running. The scientists found that jogging     5     (benefit) are maximized when done at an average or even slow-pace exercising, and just one or two hours of jogging     6     week can be enough for you to achieve success, regardless     7    your age or health condition.

The scientists analyzed the data on about 20,000 people     8     (age) between 20 and 93, collected for over 35 years by the Copenhagen City Heart Study. According Dr. Peter Schnohr, the     9     (lead) researcher, it was found that jogging is associated with as much as a 44 percent     10     (low) risk of death. The life expectancy increase in men is as much as 6.2 years, and for women it is as much as 5.6 years.