High school students use their brains to consume more energy. Usually, we should pay attention to the collocation of meat and vegetables and eat as much fish as possible. Four classes in the morning can supplement some energy between classes.
I eat steamed bread in the morning, but I don't eat it all at once. Eating steamed bread as a snack during the second recess is time-saving and convenient, and of course there is no nutrition.
Eat less pickled pickles, pickles, meat, ham and other old foods.
Recommend drinking tea to refresh yourself. Drinking too much hot coffee can easily lead to poor sleep. Don't drink coffee at night, and try not to get tired. Sometimes you can eat a piece of candy or chewing gum.
Being late for class is usually a sleepy problem, right? Be sure to keep up with the teacher's questions and listen to everyone's call in class. Don't shout at yourself, but also say it. Pay more attention to the problem and take a nap after class.
Also, be sure to take a nap, at least half an hour, so that you won't be sleepy if you fix it late. If you really can't, just lie on your desk and don't think about anything. It will be better in five minutes.