With science and technology developing, mobile phones have also changed, bringing many important benefits to users such as: keeping communication simpler, enjoying time "dead" in a fun way. Enjoy using games on smartphones, send and receive emails regardless of computers, take quick, easy, sharp photos, quickly pay bills, hold all the planning time in hand thanks to the app. (alarm clock, calendar, notes ...). The benefits of mobile phones have made our modern life much easier and more convenient.Anything has two sides. Besides the benefits are the downsides of using too much phone. The usage policy deals with health concerns.Focusing on looking at the phone screen for hours can lead to dry eyes, blurred vision, red eyes and can even make your eyes feel burning. Mobile screens are smaller than computer screens, which means squinting and straining your eyes while reading information. Therefore, anyone who is addicted to smartphones is at risk of dealing with eye problems

In the age of advanced technology, the mobile phone is one of the most widely used technologies and it plays an important role in our lives. The mobile phone will certainly bring about a lot of advantages. First of all, the cell phone is considered the quickest means of communication in our daily life, hence we can contact easily our friends and our relative wherever by calling or sending messages. Second, it is also a means of entertainment for people. For instance, we can listen to music and play games on a mobile phone. Moreover, by using the latest apps for smartphone, we can access the Internet to watch the film and check out the profile on social networks and update our status wherever we are. Final, if we have a smartphone in hand, our studying becomes more effective such as look up the dictionary, find out many sources of reference on the internet which is useful for studying. In conclusion, it could be said that the mobile phone is an indispensable part of our life.