假设你是李华 你的新西兰笔友Jack最近迷上电脑游戏而常常熬夜 来个英语作文

Dear Jack,
How have you been doing lately? I am writing to give you some advice because you are addicted to computer games and stay up late. Staying up late and less sleep do harm to your health. Furthermore, it is harder to concentrate on your study if you have not enough sleep. And then your parents worry about you, they may even scold you. In short, you should have regular sleep schedule and pay more attention to study, they are what matter.