任何事物都具有周期性,兴衰交替,波浪式地向前发展。比如,地球的气候周期为90年;妇女服饰的流行周期为105年,出现饥荒的周期为242年。那么,人本身的活动是否也具有周期性呢?是的,叫行为周期。科学家发现,人的情绪和行为是受体内生物钟(或称节奏)制约的,情绪的高涨或低落,就是因为节奏的变化而引起的。生物钟是一种具有周期性的运动,它的扫描曲线是 Everything has a cyclical, prosperous alternating, wave-shaped development. For example, the Earth’s climate cycle is 90 years; women’s clothing cycle is 105 years, the famine cycle is 242 years. So, whether the activities of people themselves also have periodicity? Yes, called the cycle of behavior. Scientists have found that people’s emotions and behavior are restricted by the body’s biological clock (or rhythm), emotional ups and downs, is due to changes in rhythm. The biological clock is a periodic movement, its scanning curve is