When the phenomenon of sleep deprivation occurs in long-term sleeplessness, dizziness and fatigue may be normal, but do not rule out vascular sclerosis, sleep apnea syndrome and other factors. 1. If long-term sleeplessness, the brain is in a state of overwork and the body can not get enough rest, which may lead to symptoms of dizziness and fatigue. 2. If there is a base of vascular sclerosis, such as vascular stenosis, plaque, embolism, which can lead to cerebral ischemia, hypoxia, and then the condition of dizziness and fatigue of sleeplessness. 3. If you suffer from anemia, due to the reduced hemoglobin content in the body, the oxygen carrying capacity of hemoglobin is reduced, which in turn may cause the brain to suffer from hypoxia, which may also cause the symptoms of sleeplessness, dizziness, and fatigue. It is recommended to go to the regular hospital in time to see a doctor to clarify the cause and standardize the treatment under the guidance of the doctor.