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　　So at what point are the cognitive gains associated with aging at their maximum, while losses are at a minimum? Probably mid-50s, Howard said, when asked about the ideal age for a US president. However, there’s so much variability in the way that individual’s brains may change over time, it’s not a perfect predictor of ideal leadership skills.

　　那么，伴随年龄而来的认知红利最大化而认知能力衰退最小化的时候是几岁呢?很可能是55岁，被问及美国总统最理想年龄时霍华德回答道。但是，个体的大脑随着时间会发生各种改变，所以不能用55岁来界定最佳领导力。

　　Still, seven of the CEOs in the top 10 of Fortune’s list of the 10 biggest companies from 2018 fall between the ages of 50 to 60 years old.

　　尽管如此，《财富》杂志列出的2018全球十强企业的十位首席执行官有七位的年龄在50岁到60岁之间。

　　沃尔玛的董明伦：52岁

　　埃克森美孚公司的戴伦·伍兹：54岁

　　伯克希尔·哈撒韦公司的沃伦·巴菲特：88岁

　　苹果公司的蒂姆·库克：58岁

　　联合健康集团的戴维·威克曼：57岁

　　麦克森公司的约翰·哈默格伦：60岁

　　CVS健康公司的拉里·梅尔洛：63岁

　　亚马逊的杰夫·贝佐斯：55岁

　　通用汽车公司的玛丽·巴拉：57岁

　　Of course, cognitive abilities alone do not determine leadership capabilities. If an older leader with ample experience effectively surrounded herself with younger, knowledgable staff, it could be possible for her to be just as effective than younger individuals.

　　当然，光是认知能力并不能决定领导力。如果一位经验丰富的年长领导者手下都是知识渊博的年轻员工，她可能会和年轻人一样高效。

　　Notably, the mid-50s aren’t necessarily the peak of other aspects of life. Previous work has shown that at this age in the US, people tend to report they are the least happy, and depression rates are highest. People appear to be the happiest and least depressed after the age of 70, when they have likely exited the workforce.

　　值得注意的是，55岁左右并不一定是人生其他方面的巅峰年龄。先前的研究显示，据报告这个年龄的美国人往往是最不快乐的，抑郁症发作率也是最高的。人们最快乐和最不抑郁的年龄似乎是70岁后，那时候通常都已经退休。