Patients who always feel dizzy should be analyzed in the context of their own situation and underlying diseases.1. Many people always feel dizzy, inattentive, and physically weak when they stay up late and do not get enough sleep for a long time, which is caused by lack of sleep.2. If an elderly person always feels dizzy when there is no problem with sleep, it may be caused by chronic cerebral blood supply deficiency, and patients are advised to improve transcranial Doppler examination, as well as lipid, blood rheology, fibrinogen measurement. It is recommended that the patient improve the transcranial Doppler examination and the lipid, blood rheology and fibrinogen measurements to see if the patient is suffering from cerebral insufficiency and high lipid and high viscosity blood. 3, feeling dizzy may also be caused by emotions, such as anxiety and depression, and many somatization symptoms, such as dizziness, panic, palpitations and chest tightness.