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现代医学认为,45~60岁为中年期。这段年龄的知识分子理解能力强,知识面广,吃苦耐劳,善于分析、综合、判断、联想和演绎。中年人犹如正午的太阳,是一生中最辉煌、最鼎盛、最容易出成就的阶段。有人统汁,科学发明家的最佳年龄是25~45岁之间,最佳峰值为37岁;诺贝尔奖获得者获奖年龄,化学奖平均39岁,生理学及医学奖平均41岁。但是,人到中年,在生理上是身体的转变时期,处于神经—内分泌的动荡时期,也是“多事之秋”。此朋身体细胞分裂的次数和数目逐渐减少,各种生理功能渐趋衰退。所以
Modern medicine, 45 to 60 years of age. Intellectuals of this age have strong understanding, extensive knowledge, hard working, good at analysis, synthesis, judgment, association and deduction. Middle-aged like a midday sun, is the most brilliant life, the most prosperous, most likely to be successful stage. Some people juice, scientists inventor’s best age is 25 to 45 years old, the best peak is 37 years old; Nobel Prize winner age, chemistry prize average 39 years old, physiology and medicine award average 41 years old. However, when people are middle-aged, they are physiologically the periods of physical transformation and are in the period of nervous-endocrine turmoil and are also “troublesome things.” The number and number of this body cell division gradually reduced, a variety of physiological functions gradually decline. and so