英国一项研究显示,大脑的衰老可能从45岁就已开始,这个年龄通常被算作中年时期。英国伦敦大学等机构研究人员在报告中指出,他们对7000多名英国公务员进行了长达十年的跟踪调查。在研究开始的时候,受试者年龄在45岁到70岁之间。在研究开始和结束的时候,受试者都接受了认知能力测试,对比结果显示,受试者的大脑功能普遍出现了下降。令人意外的是,即便是在45岁到49岁年龄组,大脑 A British study shows that aging of the brain may start at age 45, which is usually counted as middle age. Institutional researchers such as the University of London said in their report that they conducted a 10-year follow-up survey of over 7,000 British civil servants. At the beginning of the study, subjects were between 45 and 70 years of age. At the beginning and the end of the study, subjects were tested for cognitive ability and the comparison showed a general decline in brain function. Surprisingly, even in the 45 to 49 age group, the brain