Warm-up and stretching
Warm-up and stretching are the most basic actions of fitness, and these two steps are indispensable. You need to warm up before fitness and stretch after fitness. This is an action to prevent muscle injury. Relax when you do it, take a deep breath and don't stretch yourself too tight. Although you are in high school, you are still not advised to do heavy weight-bearing exercise. Step by step, there will be plenty of opportunities in the future.
prescribe a diet
Although you need to eat high protein for fitness, you are in high school and it is time to grow up. I still advise you not to drink protein powder. Rice, meat, chicken, fish, eggs and fruits should be supplemented with vitamins, because these are exactly what the body needs.
I want to eat and drink when I exercise by myself, and there are not so many taboos, because I mainly exercise my physical strength and temperament, but I can't overeat, eat on time, have reasonable sleep quality for three meals and so on.
Therefore, the stage fitness of senior high school students has an impact on physical development. Reasonable exercise and healthy diet, never fishing for three days and drying the net for two days, plus staying up late. It will only have no effect, so stick to it, no matter the wind and rain, it is also an exercise of your willpower.