生物节律是人和其他生物按照自身的特定“时间表”周期性地进行各种生命活动的现象。这特定的时间表是由所谓“生物钟”来调节和控制的。美国一些解剖学家曾在人的脑干中发现了一个管理时间的“神经核”,它在人身上起着生物钟的作用。由于存在生物钟,生物体内的任何物理和化学 Biorhythm is a phenomenon in which humans and other creatures periodically perform various life activities in accordance with their own specific “timetables.” This particular schedule is regulated and controlled by the so-called “biological clock”. Some American anatomists have found in the brain stem a “nerve nucleus” of management time, which plays the role of the biological clock in people. Due to the presence of the biological clock, any physical and chemical within the organism