If you are just starting to run, don't set a lofty goal for yourself, don't be eager for quick success, and don't insist on running for too long. You can set a short-term goal according to your physical strength. In this way, you won't be so tired, reach your goal, and after a period of exercise, your body will get better. At this time, you can set a slightly bigger goal and take it step by step.
Running is aerobic exercise, so be careful not to run too fast. Aerobic exercise requires a lot of oxygen intake, so you need to master breathing when running. Breathing is key. Many people can't run because they don't master the correct way of breathing. Keep your mouth shut and breathe through your nose. Never breathe through your mouth. Breathing through the mouth for a long time will inhale toxic gases, which will make the mouth very dry and affect running.
Before running, you need to prepare for exercise. This exercise is very important. You can stretch your legs, arms and twist your waist before running. You also need to do a stretching exercise after running to relax yourself to avoid leg pain. If you are overweight or obese, running is not recommended, because you will sprain your joints, so you can walk quickly and wait until your weight drops.