老年人由于心肺功能衰老、退化,加之缺乏锻炼,常出现气短现象。但是,许多老年人对气短却不在意,认为人老了就是这样。其实,气短通常是以下几种疾病的信号,医学专家提醒老年人切莫大意。左心衰竭多见于高血压、冠心病、心脏瓣膜病等。先兆症状表现为睡眠时喜欢把枕头逐步垫高,又常被胸闷憋气所扰醒。突然发作的夜间呼吸困难,是左心衰竭的典型病状。严重者则呼吸极度困难而发生 Elderly due to cardiopulmonary function, aging, degeneration, coupled with lack of exercise, often appear shortness of breath phenomenon. However, many elderly people do not care about shortness of breath and think that people are old. In fact, shortness of breath is usually the signal of the following diseases, medical experts remind the elderly irreverent. Left heart failure more common in hypertension, coronary heart disease, heart valve disease. Aura symptoms such as sleep, like to gradually increase the height of the pillow, and often disturbed by chest tightness, suffocation. Sudden breathless breathing difficulties at night are typical symptoms of left heart failure. In severe cases, breathing occurs extremely difficult