Symptoms of cerebral insufficiency of blood supply occur, there are three aspects of performance, namely, abnormal mental consciousness, motor nerve dysfunction, and sensory dysfunction, as follows: 1, abnormal mental consciousness: for example, always want to sleep, drowsy all day, not due to overexertion, but the aura symptoms of cerebral insufficiency of blood supply, some people show insomnia, some changes in personality, such as withdrawn, silent or indifferent expression, some people for Some people show insomnia, some changes in personality, such as withdrawn, silent or indifferent expressions, some people are anxious, can appear a brief loss of consciousness or mental decline, or even the loss of normal judgment; 2, motor nerve dysfunction: this type of aura symptoms are the most common, because the cerebral blood supply is insufficient to make the nerves in charge of human motor functions malfunction, common manifestations include sudden mouth distortion, salivation, speech difficulties, slurred words, aphasia or words do not reach the meaning, swallowing difficulties, weakness of one side of the limb, or inability to move, holding objects Some people have sudden spasm and jumping of the limbs; 3. sensory dysfunction: due to insufficient blood supply to the brain and affect the analysis area of the brain, sensory organs and sensory nerve fibers, often manifested as facial numbness, tongue numbness, lip numbness, and numbness or foreign body sensation on one side of the limb, some have blurred vision, or even sudden momentary blindness, many people have a sudden sense of vertigo, spontaneous pain in the limbs, sudden tinnitus, hearing loss. Many people have sudden vertigo, spontaneous pain in the limbs, sudden tinnitus, hearing loss, etc.