2 . Physical education, or PE, isn’t required for all high school students. In some schools, it isn’t offered for some different reasons. But should high school students have physical education? The answer is certainly “yes”.

Today many people don’t do sports. But as is known to all. doing sports is very important for an adult. Teaching teens the importance of a healthy lifestyle and making fitness plans now can help teens put exercise in the first place as an adult.

High school isn’t that easy. Many students are under a lot of stress. Stress can be harmful to a student’s studies and life. Doing sports can help them deal with stress better, helping them live a happier life at school.

The American Heart Association says that 10 million kids and teens suffer from obesity (肥胖). Teens should get 60 minutes of physical activity per day to control their weight and to help their bones get stronger. The increase in activities that don’t get teens to move around, such as computer games, means many teens don’t get their required exercise. PE classes act as a public health measure (措施) to encourage physical activities and help teens have healthy weights.

Not doing sports increases teens’ hazard of developing many diseases. An active lifestyle offers a good way of protection from these health problems. As much as 75 percent of health-care spending goes toward treating medical conditions that can be prevented by lifestyle changes, according to the American College of Sports Medicine.

According to the President’s Council on Fitness, Sports and Nutrition (PCFSN), students who performed five hours of physical activities each week improved their academic (学业的) performance. Students from programs with no physical activity, who used the extra time for classroom study, did not perform better on tests than those who gave up some study time in support of physical education.

3 . Once upon a time, when you first attended a youth sporting event, your parents probably weren’t expecting you to become a professional athlete. They signed up for a basketball, football or swimming course for you in the hope that you might learn lessons about winning in a gentlemanly way, losing with dignity and insisting on it when things get tough. Yes, doing sports improves health, but it is the life lessons that matter most.

For many of us, instead of struggling to improve our minds and spirits, we began judging progress only by the size of our muscles or the numbers on a weighing machine. For us, the thought that athletic competition is about greater life lessons and the building of character has been overshadowed by headlines about professional athletes.

“And yet there’s still strong evidence that sports strongly foster certain personal qualities,” says Angela Lumpkin, Professor of the Department of Health, Sport and Exercise Sciences at the University of Kansas. And that’s true for athletes of any age. Amateur sports provide a safe place for competition. They also provide a practice ground for managing stress.

The advantages of taking part in a sport can seep(透) into your professional life, too. In basketball, for example, “Getting everyone to play the right role on the court is the key to success,” says Alan Arlt, the founder of the Life Time Fitness basketball program Ultimate Hoops. “That is certainly useful in the business world, where everyone understands their own role in the organization.” In addition, “In athletic events, you go through good and bad times often in the period of two hours,” says former NBA head coach Flip Saunders. “Do you have the calm manner to settle yourself down, or do you totally lose it and get thrown out of the game which hurts both you and your team? All of that on-court experience has impacted the way you approach situations in reality.”

6 . Teenagers' fitness is now a major concern, to which physical exercise is very important. It reduces stress and improves fitness. Exercise makes your body strong, and helps you to keep the right body weight. Sports scientist Dr. Helen Lopez offers the following advice to teenagers: "First, you need to find out your present level of fitness.Then you can design a programme that will help you become healthier."

Dr. Lopez suggests that there are three levels of fitness that need a change of lifestyle. "Overweight" means that the person gets very little exercise and often has a serious weight problem."Inactive" means that the person does not join in many physical activities, but is not seriously overweight. "Active" refers to people who take part in sports and other physical activities, but are not at a high fitness level.

According to Dr. Lopez, overweight teenagers should keep active to keep healthy. "Ride a bike, play volleyball or basketball for a while, and go for a twenty- minute walk each day. All these will help to burn calories." Inactive teenagers should do similar activities, but add some bending and stretching exercises, such as push-ups and sit-ups, starting with twenty each day. "Inactive people can take a little more exercise than overweight people because their bodies are stronger," said Dr. Lopez. The same principle applies to active teenagers.

Dr. Lopez suggests one hour a week or more on running and other forms of intensive exercise (强化训练), together with fifteen minutes a day spent on stretching and bending activities. "These are really important in order to prevent injuries," Dr. Lopez said. Some weight-training and other body-strengthening exercises could also be planned in the programme in order to increase the person's strength.

8 . Group exercise is one of the most effective ways to improve physical fitness and maintain a healthy lifestyle. Group exercise is challenging, yet fun and empowering! Of course everyone knows that exercise is good for the body. However, studies have shown that when exercise is performed in groups, it’s not only great for improving physical health but for psychological health. It’s an opportunity to be social, release endorphins(内啡肽), and improve your strength. Additionally, group exercise creates a community feel and the shared common goal motivates participants to work hard. The instrumental support of taking on a fitness journey with others proves more effective than going to the gym alone.

Another beneficial aspect of group exercise is the informational support participants receive from the instructor. Many people fear the gym because they feel lost and don’t want to embarrass themselves. If you feel you can relate, then group training is an even better option for you. It’s a great opportunity to learn more about fitness through the clear instruction and supervision of a fitness instructor. If you’re tired of wandering around the gym wasting time and becoming bored, you can attend a cheerful group fitness class that’ll keep your workout on track. Don’t let fitness frighten you!

If you’re serious about wanting to live a healthy lifestyle, it’s extremely important to surround yourself with people who’ll provide you with the proper emotional support. I wouldn’t scold anyone for deciding to party on weekends and in turn I wouldn’t expect anyone to give offence to me for focusing on my health. Surround yourself with people who uplift, encourage and understand you! Make fitness even more fun by trying something new or any group fitness class, with a friend. Plan to go for a jog together. Then try a fun healthy restaurant or fresh juice bar! Fitness can be both fun and social!

Surrounding yourself with people who’ll provide you with respect and support can be very beneficial while working towards reaching health and fitness goals. First, decide to do it for yourself and work towards staying positive. Then make sure the people you surround yourself with are supportive. Don’t let negativity ruin your motivation.

10 . I come from a family that loves sports. My father coaches Little League baseball. My mother swims nearly every weekend. My brother is on his high-school basketball team, and I am the best hitter on my middle-school volleyball team. All of us have benefited(受益）from sports. One of the most common ways for kids to take part in sports is to join a team. Joining a sports team should be a school requirement.

Playing sports is good for both the body and mind. Everyone knows that exercise helps people stay fit. For example, swimming helps your heart work better and it also helps build muscle strength(肌肉力量）. In addition, school athletes(运动员） often have a healthy diet. I eat a lot of fruit and vegetables and avoid fatty foods because I must stay in great condition.

Being on a team allows students to enjoy a healthier social life. They often make more friends and can be some of the most popular kids in school. Since joining the basketball team, my brother has made friends with a lot of his tea mates and has showed more interest in spending time with them.

Kids who take part in school teams sometimes earn college scholarships(奖学金）. My brother's friend, Justin, played football in high school. His family did not have money to send him to college. However, a college invited him to play on its team. The college is paying for him to go to school. Joining a team turned out to be one of the best decisions he had ever made. Now he studies at a great college and plays on its football team Not every school athlete gets a college scholarship, but joining a school team-makes it possible.

Although some people may not like the idea of forcing students to join a school team, its many benefits such as keeping kids heal thy, new friendships, and possible scholarships cannot be denied(否认）.