现代社会医疗条件改善,人类平均寿命延长。老年人口比重增大,据我国统计约占5%。老年标准:国内规定60岁以上(包括60岁)。国外以65岁进入老年期,血压除某些低盐饮食的原始人群外,随增龄而升高,过高血压导致心脑血管病,是老年人致残和死亡的主要原因。故扼要讨论老年期高血压某些特征,供参考:一、老年期生理特点由于细胞结构老化,酶量变动。老年期不仅外貌变化,还由于既往的疾病或当前健康状况的影响,体内器官呈不同程度的改变。主要特征有以下几点:(一)65岁以上老人与年轻者比较;细胞平均减少30%。体液亦相应减少,内环境恒定受到影响。贮备与代偿能力大为降低。难以 The medical conditions in modern society have been improved and the average human life expectancy has been extended. The proportion of the elderly population increased, accounting for about 5% of China’s statistics. Elderly standards: the domestic provisions of 60 years of age (including 60 years old). Foreign 65-year-old into the elderly, blood pressure in addition to some of the original population of low-salt diet, increased with age, high blood pressure lead to cardiovascular disease, the elderly are the main cause of disability and death. Therefore, a brief discussion of some characteristics of senile hypertension for reference: First, the physiological characteristics of aging As cell structure aging, enzyme changes. In older age, not only appearance changes, but also organ changes in the body to varying degrees due to past illness or the current state of health. The main features are the following: (a) elderly over 65 compared with young; average reduction of 30% of cells. Body fluid is also reduced, the inner environment is constantly affected. Reserve and compensatory capacity is greatly reduced. difficult