It is common for elderly people to have trouble catching their breath due to a number of factors. Generally, the physiological factors are due to the age of the lungs, the tension of the lungs will be relaxed compared to the younger state, which will lead to a decrease in the respiratory function of the lungs, when the emotional excitement or a little strenuous exercise will lead to an increase in oxygen demand. At this time, the lung function is not able to meet more oxygen intake, and the symptoms of breathlessness and difficulty in breathing will occur. Pathological factors include chronic bronchitis and chronic obstructive pulmonary emphysema, in which chronic inflammation causes a chronic inflammatory response in the airways, resulting in a decrease in the elastic retraction of the alveoli, which leads to progressive exhalation dyspnea. Patients who are exposed to viral, bacterial and other pathogens in the airways due to rain, late nights, fatigue and other triggering factors will easily aggravate the pathological changes manifested as breathlessness.