Secondary students should or shouldn't use Facebook ??? I agree that secondary students should not use Facebook. There are several reasons why they should not act with the biggest social networking in the world. Firstly, using Facebook has a bad influence on their studies and eyes. Facebook is the same as an addictive substance, so it makes them feel upset if their day is no more Facebook. For example, a nine-grade student said on a Vietnam online news she spent 10 hours per day on this. Since Facebook takes them too much time, they lacks of attention for studies. Consequently, their grades fall down and their eyes are gradually short-sighted. Secondly, they are not safe when joining in Facebook, a home without doors. Everyone can see and remark them. My school has ever had many conflicts between students because of their comments about others on Facebook. They become victims's kidnappers through sharing personal information and making new friends. Finally, it affects their psychology. For instance, lots of students have offensive behaviors like swearing, cursing teachers,etc, as they learn untaught trends on Facebook from other students. It keeps them in a virtual life and makes them enjoy being alone. Therefore, some students are autistic. In brief, Facebook is not suitable for secondary students. Note: I need you to check my mistakes and ideas. I have to write about 200 words, but I want my essay to have more ideas for topic, especially in conclusion. Thank you very much <3