Symptoms of inadequate blood supply to the cerebral arteries, which are divided into inadequate blood supply to the anterior and posterior circulation vessels. In the symptoms of insufficient blood supply to the anterior circulation arteries, patients may present with headache, episodic speech dumbness, numbness and weakness of the limbs, and transient blackness. Also, choking on water or decreased concentration can occur, and some patients may also have personality changes, manifesting as depression and anxiety. In the posterior circulation, the patient may experience dizziness, episodes of visual rotation, and in severe cases, nausea and vomiting. Patients may also experience skewed walking, poor body balance, or cerebellar chanting-like language. Patients may also experience choking on water, difficulty swallowing, and in severe cases, severe headaches. For cerebral blood supply deficiency, the main clinical treatment is to improve cerebral blood circulation, if necessary with anti-platelet aggregation drugs.