奇妙的人体生物钟 世间一切事物都是按照一定的规律运行的,人体也如此。人的各种生理指标,如体温、氧耗量、血压、脉搏、血流、蛋白含量等都随昼夜变化而呈节律性变动。人体各种激素的含量、脑组织生物化学成分的含量也都具有节律。人的生理随着昼夜交替、四时变化进行着周期性的节 Fantastic human biological clock everything in the world are operating in accordance with certain laws, the human body as well. People’s various physiological indicators, such as body temperature, oxygen consumption, blood pressure, pulse, blood flow, protein content, etc. are rhythmic changes with the diurnal changes. The body’s various hormones, brain biochemical composition also has a rhythm. Human physiology alternates with day and night and undergoes seasonal changes at four o’clock