The most common cause of dizziness after fatigue is inadequate blood supply to the cerebral arteries, which in turn is a common factor leading to lacunar cerebral infarction, a large cerebral infarction. It is recommended to check cerebral hemogram and cerebrovascular imaging for two arteries, vertebrobasilar artery and internal carotid artery, for atherosclerosis and whether the dizziness condition is due to atherosclerosis after fatigue. Common causes can also be common in brain cell hypoxia, such as when cardiopulmonary insufficiency, there will also be symptoms and manifestations of ischemia and hypoxia, and dizziness, headache, vertigo, and transient blackness after exertion. Commonly seen in cervical spondylosis, when the neck is compressed there will also be insufficient blood supply to the vertebral artery, which will also lead to vertigo. Commonly seen in cardiomyopathy, which is especially dominated by exertional angina after fatigue and also has symptoms of chest tightness, shortness of breath, palpitations with dizziness and weakness.