1. Eat well (it is best to do it yourself, pay attention to balanced nutrition and replenish energy) 2. Sleep well (more than 8 hours, go to bed early and get up early to ensure normal detoxification of internal organs) 3. Aerobic exercise (cycling or jogging) 4. Pay attention to your mood. . Arrange these items reasonably in daily life. Physical fitness has a lot to do with your environment and lifestyle. Even if you eat well and exercise well, you will be under great pressure all day, even if you don't get enough sleep. Special attention should be paid to eating less junk food, drinking less and not smoking. Stay up less. Physical fitness is related to your lifestyle. Don't think that running every morning will get better. What I want to say is that keeping in good health is laziness, and nothing else is awesome. Exercise is the only way to strengthen physical fitness. My college classmates have graduated for almost 8 years now. Those who eat supplements and drink health tea all day are either weak or covered in fat, and they are panting when walking. If you don't exercise, people will behave differently immediately in middle age.