Laughter (笑) can help us be free from pain and increase our endurance (忍耐力). A study shows that telling a joke to a friend can help us do more exercise at the gym or go farther on our daily walks.

Joking is also good for our social lives. Compared with staying alone, a person is more likely to laugh when he stays with other people. When someone starts laughing, everyone else laughs too, even if they’re not sure why he is laughing.

Sophie Scott, a British scientist, believes that when we laugh, we are making and keeping social connections. They are very important for our health because keeping connections with people around can make us healthier and live longer. Those who feel more connected to others have less depression (抑郁), and are better at understanding others.

Caspar Addyman, a doctor said babies naturally understood the importance of sharing laughter. “Babies can make you laugh, and you can make them laugh,” he said. “It’s all about connections.” Laughter means that we are part of a group, and we like to be in a group. Actually, spending time with people we care about is the quickest and easiest way to reduce stress and improve our health condition. It’s pretty fun, too.

Do you often run outdoors to keep healthy? Have you ever thought about how running helps to clean up the earth? Sometimes a creative mind can bring us a win-win(双赢) situation.

Plogging, a new way to exercise, began in Sweden(h), The name "plogging" comes from two words—the Swedish(瑞典的) word "plocka", which means "to pick up(捡起), and the word Jouging"", which means" to run slowly". A Swedish man called Erik started the movement, He saw rubbish here and there when riding to work each day. He became worried about the dirty environment and decided not to go to work by bike anymore. Instead, he began to run to work and pick up the rubbish at the same time. To his joy, more and more people followed him and soon plogging became popular.

Many people choose plogging instead of just jogging because they think plogging is a good way to help clean up the earth. Sometimes rubbish is difficult to collect because it may scatter all around. But if the runners pick up the rubbish on the way, it is quite different. Because many hands make light work. Another reason is that plogging burns more calories(卡路里). According to a research, plogging for 10 minutes burns 48 calories, while usual jogging for 10 minutes burns about 39 calories.

Everyone on the earth should play a part in cleaning it up! It's time for us to take action together. So ready? Let's plog tomorrow!

We know health is important in everyone’s life. Here are some ways to make it easy to keep healthy.

★Eat a balanced diet（平衡的饮食）. Eat a lot of fruit and vegetables, some grains（谷物）and a little meat.

★Exercise twice or three times a week.

★Get enough sleep. It is best to get eight hours’ sleep a day.

★Keep yourself busy. This is good because it stops you from having bad habits. To keep yourself busy, you can walk around the house, spend time with your pets, do sports or have a hobby.

★Go out and make friends. Spend time and have fun with them. Talk with them, but try not to talk about anything bad. You should stay with healthy people.