A burst of numbness in the brain may be related to severe sleep deprivation, or may be caused by cervical spondylosis, hypertension and other reasons. 1. Severe sleep deprivation: some people stay up too late for a long time, resulting in poor sleep quality and insufficient sleep time, and the brain is in a state of fatigue for a long time, resulting in brain dysfunction, resulting in cerebral vasodilatation and constriction dysfunction, which may show a burst of numbness in the brain, accompanied by a feeling of drowsiness in the head and weakness and other symptoms. 2. Cervical spondylosis: Especially in patients with cervical spondylotic hyperplasia or cervical disc herniation, it is easy to lead to local vascular nerve root compression, resulting in insufficient blood supply of the vertebral basilar artery, resulting in ischemia of the local tissues of the brain, lack of oxygen, which may result in numbness of the brain, accompanied by dizziness, discomfort of neck and shoulders, and other symptoms. 3. High blood pressure: when blood pressure fluctuation is elevated, resulting in microcirculation of blood vessels in the brain to produce obstacles, resulting in poor blood circulation in the brain, which may cause a bout of numbness in the brain, may also be accompanied by dizziness, headache and other symptoms. A bout of numbness in the brain may also be caused by other reasons, if accompanied by obvious symptoms of discomfort, you should consult a doctor as soon as possible, after a clear diagnosis of the cause, by the doctor’s guidance for treatment.