1. Do you go to school by bike? If so, it goes without saying that cycling for more than 30 minutes every day will obviously help your lower limb strength; If you don't ride a bike, try to run 1000 meters every morning after school. You may be tired and sweat a lot, but you should stick to it for the sake of fitness.

2. When you come home from school at noon, you must eat on time and take a lunch break. What I want to talk about here is the collocation of lunch. If possible, try to take rice as the staple food every day, beef and chicken breast as the meat, and eggs instead of yolk and milk. This collocation is a fitness recipe. You can try it.

Do you go home after school in the evening? If you go home, you can either go to school by bike or run at school after supper. If you have special skills, you can spare some time to play basketball and football.

4. Go home at night 10. If the homework is not tight, 100 sit-ups +40 push-ups before going to bed. If the homework is too late, you can only do sit-ups.

PS: It is inevitable that people will be excited for a while after exercise, which may affect your reading status; Fitness is very important. If you start, try not to stop. In fact, high school study is more important. Learn well before exercising.

I hope my answer is useful to you, I wish you success in fitness and I wish you progress in your study!