人类寿命随科学技术的进步及生活的改善而逐渐延长。人到50岁以后,体内纤溶系统功能逐渐下降,凝血倾向大于纤溶倾向,其结果是脑血管的发病率逐年增加,已成为严重危害人民身心健康的一种常见病、多发病。近年来,由于分子生物学的研究进展,血液流变学研究发现:血液的流动性、凝固性以及血液中某些大分 Human life expectancy with science and technology progress and improvement of life and gradually extended. When people reach the age of 50, the function of fibrinolytic system in the body gradually declines, and the tendency of coagulation is greater than the tendency of fibrinolysis. As a result, the incidence of cerebrovascular diseases increases year by year and has become a common and frequently-occurring disease that seriously endangers people’s physical and mental health. In recent years, due to the progress of molecular biology research, hemorheology study found that: blood fluidity, coagulation and blood in some large