老年人由于免疫功能低下 ,机体对外界微生物和其他刺激的防御能力差 ,不仅容易生病 ,而且往往是数种疾病缠身 ,多脏器有病变。据北京医院的专家报道 ,60～ 69岁组平均每例患独立性疾病 7 5种 ,70～79岁为 7 8种 ,80～ 89岁为 9 7种 ,90岁以上为 1 1 1种 ;甚至同一脏器也可同时 Because the immune function of the elderly is low, the body’s defense ability against external microorganisms and other stimuli is not only easy to get sick, but it is often due to several kinds of diseases and multiple organs. According to experts from the Beijing Hospital, an average of 75 cases of independent disease were reported in the 60-69-year-old group, 78 cases in the 70-79 years old group, 79 cases in the 80-89 years old group, and 111 cases in the 90-year-old group or above; Even the same organ can be simultaneously