Nowadays, our world is changing rapidly, especially in technology such as smartphones, automation, robots, artificial intelligence, and so on. In particular, mobile phones become one of the most vital things in our daily life. Not only teenagers, adults or working age have their mobile phones but some children also have access to it. Furthermore, some groups spend their time every day in front of the monitor. So, there are some concerns and I will show the positive and negative points of this behaviour.