The essence of health preservation is to treat after, not to raise first. Learn and read more books on health knowledge, and gradually cultivate your own health concept through the application in life. Naturally, you will form healthy habits, and health will follow. If I talk to you here now, I can't finish my health knowledge tomorrow. First of all, keep healthy and have a positive attitude, right? You can't wait here for everyone to provide you with some health information before you exercise.