Songs that make our hearts happy can make them stronger too, US researchers reported on Tuesday.

    They found that when people listened to their favorite music, their blood vessels (血管) dilated in much the same way as when they are laughing, or taking blood medications.

    “We have a pretty impressive effect,” said Dr Michael Miller, director of preventive cardiology (心脏病学) at the University of Maryland Medical Center in Baltimore.

    “Blood vessel diameter improved,” he said.“The vessel opened up pretty significantly. You can see the vessels opening up with other activities such as exercise.” A similar effect is seen with drugs such as statins.

    When blood vessels open up more, blood flows more smoothly and is less likely to form the clots (凝块) that cause heart attacks and strokes. “We are not saying to stop your statins or not to exercise but rather to add this to an overall program of heart health,” said Miller, who presented his findings to a meeting of the American Heart Association in New Orleans.

    Miller's team tested 10 healthy, non-smoking men and women, who were told to bring their favorite music.They spent half an hour listening to the recordings and half an hour listening to music they said made them feel anxious while the researchers did ultrasound tests designed to show blood vessel function.

    Compared to their normal baseline measurements, blood vessel diameter increased 26 percent on average when the volunteers heard their joyful music.Listening to music they disliked — in most cases in this group — blood vessels narrowed by six percent, Miller said.

    Miller said he came up with the idea after discovering that laughter caused blood to literally flow more smoothly. “I asked myself what other things make us feel really good, besides calories from dark chocolate of course.Music came to mind. It makes me feel really good,” he said.

    Most of the volunteers chose country music but Miller said the style is not so important rather than what pleases each individual.

    People all need friends because nobody wants to be lonely and a friend can help you in good and bad times. You have made friends since childhood, but you still don't know who your true friends are. Here are some signs to tell you if your friend is a true friend:

Always honest

    Honesty is important to keep a relationship alive. A true friend always tells you the truth. It may be hard sometimes but lying can destroy a friendship. It is important that your friend speaks honestly and never makes up stories.

    There are always periods in your life when you have problems or difficulties. A true friend will always have time to listen to your problems and give advice. It may not be able to offer a solution to your problems but the fact that your friend made time to listen is a sign he/she cares for you. Your friend is not a true friend if he/she can never make time for you when you are in trouble. You also need to be reasonable and accept that your friend also has other things to do so he/she can't always listen immediately to your problems.

Always respectful (尊敬的)

    A true friend will always respect your opinion no matter whether he/she agrees or not. Your true friend may disagree but never insists that he/she is correct.

Always understanding

    It is possible that some problems will arise between you and your friend. A true friend will always be forgiving (体谅的) and understanding even if it isn't his/her fault. We are all different people and we all make mistakes. A true friend is always forgiving and understanding because he/she doesn't want to take the risk of losing his/her best friend.

    When it comes to the most famous 20^th century painters of the United States, Grandma Moses should be mentioned, although she did not start painting until she was in her late seventies. As she once said to herself:" I would never sit back in a rocking chair, waiting for someone to help me." No one could have had a more active old age.

    She was born on a farm in New York State, one of five boys and five girls. At 12 she left home and was in domestic service until at 27 she married Thomas Moses, the hired hand of one of her employers. They farmed most of their lives, first in Virginia and then in New York State, at Eagle Bridge. She had ten children, of whom five survived; her husband died in 1927.

    Grandma Moses painted a little as a child and made embroidery(刺绣) pictures as a hobby, but only changed to oils in old age because her hands became too stiff(僵硬的) to sew and she still wanted to keep busy and pass the time. Her pictures were first sold at the local drugstore and at a market and were soon noticed by a businessman who bought all that she painted. Three of the pictures were exhibited(展览) in the Museum of Modern Art, and in 1940 she had her first exhibition in New York. Between the 1930's and her death, she produced some 2,000 pictures: careful and lively portrayals of the country life she had known for so long, with a wonderful sense of color and form. "I think really hard till I think of something really pretty, and then I paint it" she said.

    When we have troubles we turn to our family. But what would we do if we lost our family? I want to share with you a touching film about an Indian child who loses his loved ones.

    The main character in the 2016 Australian film Lion is a child named Saroo. When he is 6 years old, he follows his brother Guddu to a job, but gets lost. Saroo ends up in a new city and is adopted by a kind Australian family.

    However, one day Saroo is reminded of his original family. He knows immediately that he must find out as much about them as he can, so he racks his brains (绞尽脑汁)for all that he can remember.

    Lion is the most moving film that I have ever seen. When I saw the young Saroo trying to help his brother while they worked on a construction site at such a young age, I was amazed.

    In today's society，the poor are always looked down upon. But I saw in the eyes of young Saroo great courage and kindness that made me think differently. He has great qualities that help him survive in the strange city where he finds himself.

    When Saroo sees that people are kind he rewards them with the sweetest smiles and loves them with all of his heart. Saroo's goodness, I believe, allows him to live a happy life with his Australian foster (收养)family.

    It is unbelievably hard for Saroo to reunite with his original family. He can't even remember the name of his hometown. It takes him days to find the real one. In fact, he has to go through every alternative (供选择的东西)he can find on Google Maps.

I'm deeply impressed by Saroo's determination. It is why, when I saw the movie, I cried at the moment when he finally found his mother.

    Lion is full of moving and impressive details. There are so many that I can only mention a few of them here. But what stands out most to me is Saroo's commitment (投身)to finding his original family，and the fact that his search doesn't stop him from loving his foster family.

    I want to recommend this film to everyone. See it and you'll come to understand so much about family and love.

    Rescuers pulled out an eight-year-old girl alive from the ruins of a Taiwan apartment block on Monday more than 60 hours after it was destroyed by an earthquake, as the mayor of the southern city of Tainan warned the death toll could go beyond 100. The official death toll from the quake rose to 38, with more than 100 people missing.

    The girl, named as Lin Su-Chin, was conscious and had been taken to hospital. There were possibly two other people still alive in the destroyed building.

    The quake struck at about 4 am on Saturday at the beginning of the Lunar New Year holiday, with almost all the dead found in Tainan's destroyed Wei-guan Golden Dragon Building. Rescue efforts are focused on the ruins of the 17-story building, where more than 100 people are listed as missing and suspected to be buried deep under the ruins.

    Earlier a woman, identified as Tsao Wei-ling, was found alive lying under her dead husband. Their two-year-old son, who was also killed, was found lying nearby. Another survivor, a man named Li Tsung-tian, was pulled out later. Several hours later, Li's girlfriend was found dead in the rubble. Tsao and Li were both being treated in hospital.

    Rescuers continued to climb over the twisted（扭曲的） remain of the building as numb family members stood around, waiting for news of missing relatives. It's reported that 36 of the 38 dead were from the Wei-guan building, which was built in 1994.

    The mayor of Tainan said there needed to be a "general sorting out" of old buildings to make sure they were able to deal with disasters like earthquakes. A better job was also needed in ensuring building quality as well as building management in the near future.