Patients may experience dizziness after running 1,000 meters, probably because the exercise is too strenuous, resulting in more sweating and a relative lack of blood volume, which will lead to dizziness; it should also be considered that running consumes too much blood sugar in the body, resulting in a decrease in the blood sugar level in the patient’s body, resulting in insufficient blood supply to the brain and chronic ischemia and lack of oxygen to the brain, which will also manifest as dizziness. The dizziness of the patient after running 1000 meters may also be caused by the fluctuation of the patient’s blood pressure due to the intense activity, and the increase of blood pressure will lead to dizziness, head swelling and flushing of the face. The patient is advised to take an oral drink or eat candy and observe whether the symptoms can improve. If it can improve, consider this aspect of the problem. If the dizziness symptoms persist without relief, be sure to promptly visit the hospital for examination and treatment.