The lack of gas may be caused by a variety of factors, common physiological factors such as severe emotional fluctuations, pathological factors such as respiratory diseases, cardiovascular diseases, etc., it is recommended to adjust the mindset according to the symptoms in a timely manner or accept the relevant treatment. 1. Physiological factors: when there are violent mood swings or strenuous exercise, it will lead to an increase in the body’s oxygen consumption, the body’s oxygen supply can not meet the needs of the body will lead to the feeling of insufficient gas. 2. Pathological factors: (1) Respiratory diseases: such as pneumonia, tuberculosis, etc. will lead to a decline in the exchange of gas function of the lungs, both will lead to gas is not enough. (2) Cardiovascular diseases: cardiovascular diseases such as common hypertensive heart disease or coronary heart disease will lead to a decline in heart function, oxygen-rich blood can not be supplied in a timely manner will lead to insufficient gas. Drastic emotional fluctuations, respiratory diseases, cardiovascular diseases, etc. can lead to insufficient gas, and it is recommended to adjust the mindset according to the symptoms or go to the hospital to receive relevant treatment.