Early in the morning, at noon, or in the evening, in big cities and in the countryside, all across the United States, you can see American people running. Men and women, young people and old people are running. People run everywhere—along the beaches, through the park, down quiet streets or at the gym（体育馆）. Some people even run in their living room.

Running didn’t use to be so popular. In the 1960s, runners were mostly athletes and healthy strange people. In those days, when people saw a runner, they used to say,” Hey, what’s the hurry for?” Or they might say to themselves. “Is he crazy（疯狂的）?”Women almost never ran. If they did, they might hear a man shout, “If I catch you, can you buy me a drink?” But today all these have changed. Men and women of all ages enjoy running.

Doctors say many of the health problems in the United States come from these bad habits: Eating too much smoking cigarettes and not exercising enough. Doctors tell us,” Eat less, don’t smoke, and exercise more. “Running is good exercise because it helps get strong hearts and lungs（肺）. It also helps most people lose weight.

Many students don’t have a good habit, so they are not healthy. Here are some things about health.

●Healthy eating

Many students like ice-cream and hamburgers. But they are not healthy. Eat green vegetables and fruit every day. Apples, tomatoes and carrots are very good for us. Healthy eating isn’t only eating healthy food, but eating right. We must eat breakfast, and we can have vegetables and chicken for lunch, but don’t eat dinner too much and don’t eat too late.

●Do sports

Many students like to watch TV or play computer games. They don’t like playing sports because they think it’s boring and difficult. But its not right. Doing sports can make(使得) us well and happy.

Let’s have good habits from now.

Taekwondo (跆拳道）is the national sports of South Korea. The name taekwondo was created by Choi Hong Hi, a Korean general in 1955. In 1966, he established the International Taekwondo Federation (ITF). Seven years later, another organization, the World Taekwondo Federation(WTE), was created. And under its guidance taekwondo became an official medal sport at the 2000 Olympic Games in Sydney, Australia.

Nowadays taekwondo is becoming more and more popular. It is practiced all over the world by more than 70 million people. People think of taekwondo as both an art and a sport.

It is an art because you use your mind and body to make movements. The Korean word taekwondo means the way of the foot and the hand. In taekwondo, people kick and hit. They must control their feet and hands. They learn to use the mind for each movement. This makes taekwondo artistic.

Taekwondo is a sport because two people fight and there is a winner of the match. There are many types of contests. People train for years to get ready for big championships, including the Olympics. To become an Olympic champion, you must work very hard and never give up.

Taekwondo is fun, but it is hard work, too. Many people loved it. After all, it can make us stronger and more confident. It also teaches us to never give up. What is more, it can help us to make us safe when someone wants to hurt us.