Vagal vertigo is mostly seen in young women and school-age adolescents, mostly due to dysfunction of the vagus nerve regulation. The common clinical symptoms are dizziness, inattention, pallor, loss of vision and hearing, nausea, vomiting, profuse sweating, unsteadiness, etc. The triggering factors are mostly emotional stress, fatigue, pain, panic, or being in a crowded, stuffy room where it is more likely to attack. Preventive care: Take a small amount of salt water about 50-100ml/day before menstruation until the 2nd day of menstruation, so that some people will have mild edema of the eyelids/lower limbs, which can disappear after stopping taking salt water. Avoid triggers as much as possible. At the onset of prodromal symptoms, lie flat and flex your arms and legs immediately to avoid trauma. You can try standing training by standing against a wall for 5 min per day, gradually increasing to 15-30 min. If the symptoms are severe, you can go to the hospital for treatment.