Excessive carbon dioxide has different pathological states that occur depending on the situation. For example, if there is too much carbon dioxide in the body and too much carbon dioxide is inhaled, this can easily lead to hypercapnia, accompanied by hypoxemia, which can lead to respiratory failure. If there is a lack of oxygen in the tissues and organs, but too much carbon dioxide is retained in the body, this can easily lead to respiratory failure, accompanied by electrolyte and acid-base balance imbalance, and even death due to multi-organ failure. If too much carbon dioxide is expelled and the body lacks carbon dioxide, this time will lead to typical respiratory alkalosis, which may appear as numbness of the lips and skin of the extremities, or even drowsiness and coma. It is caused by excessive emotional stress, quarrels, and irritability, resulting in hyperventilation and exhaling too much carbon dioxide to the outside of the body.