Some people think teenagers ' screen time should be limited. They often spend too much time on videos, games, or social media, so they have little time for homework. In additon, too much screen time is bad for health. It can hurt their eyes, reduce sleep and cause weight gain. Other believe screen time shouldn't be limited. The quality of screen time is more important than the amount. Teenagers can learn useful skills and knowledge online. Also, if parents limit too much, teenagers may feel it is unfair, and the gap between them may become wider. In my opinion, teenagers should use screens wisely, with balance between study and health