本文对３８例脑梗塞患者和３０例对照组的血糖、全血粘度、血小板粘附、聚集及血压进行了昼夜２４小时生物周期变化的观察，发现两组的血糖、全血粘度、血小板粘附、聚集指标呈现４时高峰值，而血压４时为低峰值的同步性２４小时周期节律变化。脑梗塞发病时间与上述各项指标的变化有着密切的因果关系，这对临床预防和治疗时间性有重要意义 In this paper, 38 patients with cerebral infarction and 30 control group of blood glucose, whole blood viscosity, platelet adhesion, aggregation and blood pressure were observed 24-day biochemical changes in the cycle and found that two groups of blood glucose, whole blood viscosity, platelet adhesion , The aggregation index showed the peak at 4 o’clock, and the peak pressure at 4 o’clock was synchronized with a low 24-hour cycle rhythm. The onset time of cerebral infarction has close causal relationship with the changes of the above indexes, which is of great significance to the timeliness of clinical prevention and treatment