Patients who experience dizziness and vomiting after excessive exercise mainly consider the following causes: 1. Consider that it may be because after excessive exercise, it leads to spasm of the patient’s cerebral blood vessels, causing insufficient blood supply to the brain, and the patient will experience intense dizziness, nausea and vomiting. 2. It may be due to increased oxygen consumption of the body during exercise, causing relative hypoxia in the brain. Especially when the brainstem cerebellum is hypoxic, obvious dizziness and nausea appear. 3. Excessive exercise of patients may also lead to excessive blood glucose consumption in the body, causing insufficient blood glucose supply in the brain of patients, and patients may experience dizziness and vomiting. 4. Excessive exercise intensity of patients may easily lead to more sweating and insufficient blood volume in the body, and this severe blood volume deficiency may cause reduced perfusion in the brain and also lead to vertebral Inadequate blood supply to the basilar artery, resulting in dizziness, nausea and vomiting. 5. Strenuous sports, especially those with significant postural changes, may affect the vestibular function, and patients may also experience dizziness, nausea and vomiting.