Frequent head lapses may be caused by low blood pressure, sleep deprivation, transient ischemia, etc. Low blood pressure causes slow blood flow, resulting in reduced blood flow to the brain. 1. Low blood pressure: low blood pressure will lead to slow blood flow, resulting in reduced blood flow to the brain, thus triggering transient cerebral insufficiency of blood supply and the appearance of brain lulls. 2. Lack of sleep: prolonged sleep deprivation will lead to brain nerve function disorders, resulting in transient insufficient blood supply to the brain and a lulling sensation in the head. 3. Transient cerebral ischemia: Transient cerebral ischemia is caused by spinal cord and brain ischemia, which will lead to transient neurological deficit episodes, and due to the insufficient blood supply, the phenomenon of head sensation of flickering will occur. It is recommended to go to the hospital for examination, and the doctor will give the corresponding judgment according to the clinical symptoms, and clarify the cause of the disease and timely symptomatic treatment.