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什么是生物钟你只要稍加留意便会发现你的一切生理活动都有个“预定时刻表”在支配着。什么时候饿了想吃;什么时候困了想睡;什么时候又会自动醒来,体内生物钟都有个“安排”。为迎接每个动作,生物钟都作了许多“准备”。例如为迎接吃饭这一动作,饭前大脑的食欲中枢(食欲钟)便兴奋起来,肠胃的蠕动加快,各种消化腺的分泌加强等。为迎接就寝这一动作,
What is a biological clock? As long as you pay attention, you will find that all your physical activities have a “predetermined timetable” at your disposal. When I’m hungry I want to eat; When I’m sleepy, I want to sleep; When I wake up automatically, the body’s biological clock has a “arrangement”. In order to welcome each movement, the biological clock has made many “preparations.” For example, to greet the meal, the appetite center (appetite bell) of the brain before meals is excited, the gastrointestinal motility is accelerated, and the secretion of various digestive glands is strengthened. To welcome this act of bedtime,