Hyperventilation syndrome is in most cases not life-threatening and not fatal. This clinical syndrome is mainly due to quarrels, temper tantrums, anger, irritability, or after significant mental stimulation, there will be hyperventilation so that the body’s carbon dioxide excretion is excessive, relative to the inhalation of oxygen is excessive, this time will appear respiratory alkalosis. It can be manifested as numbness of the limbs, numbness of the mouth and lips, and drowsiness, but in general, there are no obvious shock symptoms, which will not affect the life safety. In general, early identification and rest, easing the heart rate and respiratory rate, and giving appropriate carbon dioxide inhalation can relieve.