—It's thirty d{#blank#}1{#/blank#}．

    Something changed a few years ago. Around 2012, teens started to spend their time much differently from the generation before. I started to notice big difference in teen's b{#blank#}1{#/blank#}and attitudes in the yearly survey of 11 million young people.

    A 2017 survey found that two out of three U.S. teens owned an iphone. For this reason, l call them iGen (iphone generation).

What makes iGen different?

    Growing up with a smart phone has affected nearly every aspect of their lives. They spend so much time on the internet, texting friends and on social media, an average of about six hours per day, so they have less free time for everything else. That i{#blank#}2{#/blank#}going to parties, shopping at the mall or watching movies with their friends. These were o{#blank#}3{#/blank#}the favorite activities of most teens. But now iGen teens are taking part in these social activities at lower rate than others.

    A link that should be noticed

    I wondered if these changes might be c{#blank#}4{#/blank#}to their deteriorating(退化）mental health. Sure enough, I found that teens who spend more time on screens are less happy and more disappointed. Meanwhile, a 2017 study asked some adults to give up Facebook felt happier, less l{#blank#}5{#/blank#}and less disappointed during the week as they had more free time for social activities like meeting friends, watching movies,etc.

    What else is lost?

    Spending less time with friends means less time to develop social abilities. A 2016 study showed that the sixth graders who spent just five days at a camp w{#blank#}6{#/blank#}using screens ended time better at reading expressions on others' faces.

    That isn't to say that iGen teens don't have a{#blank#}7{#/blank#}. They are physically safer and more tolerant (宽容). They also seem to have a stronger work spirit and more realistic expectations. To my surprise, the iGen teens I interviewed said they preferred seeing their friends in person to communicating with them using their phones.

    But it might be just what iGen needs.

—Yeah, dream on!

    Shanghai, a beautiful city during the day, becomes even more wonderful at night.

    At the end of the day, both the older part of the city around the Bund and the m{#blank#}1{#/blank#}buildings in Pudong are full of colorful bright lights. The buildings, both new and old, look c{#blank#}2{#/blank#}different and very exciting.

    If you look across the Huangpu River, you can see the brilliant Oriental Pearl TV Tower and the Jin Mao Tower. Take a boat a{#blank#}3{#/blank#}the river and you can see the amazing nightlife on the Bund, There are more than 30 tour boats, including ancient dragon boats in the Ming and Qing styles and boats trade in the Shikumen style.

    If you prefer w{#blank#}4{#/blank#}in the streets, try the famous Nanjing Road Pedestrian Street(步行街) ,There are busy shops and cafes and you will see thousands of local people enjoying themselves. Most of the shops close at 10 p.m. , but at that time, teahouses are still open. In fact, some of them are open 24 hours a day. Karaoke bars and coffee houses are also popular nightlife places where you can meet friends and make new o{#blank#}5{#/blank#}.

    If you are in Shanghai for the first time, make sure you also visit Xintiandi, a very popular a{#blank#}6{#/blank#}where you can see buildings in Western and Chinese style side by side, Xintiandi is a great place for young people, but it may be a little n{#blank#}7{#/blank#}for older visitors! A quieter place to visit is Park 97, near the west gate of Fuxing Park, Luwan District. Park 97 opened in 1997 and you can find clubs and international restaurants like Baci where you can get Italian food and Tokyo Joe's, a Japanese restaurant.