My brother always stayed up late playing mobile games when he was in college. How to persuade him?

In this case, there is this phenomenon among college students. Because the lights are generally not turned off in universities, they may play 120 and stay up for two or three days in the middle of the night, thus forming this bad habit. If you want to persuade them, it is really difficult to do so, but you can let him correct it slowly, and remember that you must not be too active. This is really bad, that is, confiscate her mobile phone and don't let him play at night.