Abnormally fast or deep respiration, which results in the loss of carbon dioxide from the blood, thereby causing a fall in blood pressure, tingling of the extremities, and sometimes fainting.

• 强力呼吸不正常的快呼吸或深呼吸，其结果是血液中失二氧化碳，从而导致血压降低，手脚颤动，有时还会晕倒