PNAS:受教育程度的高低可能不会预防大脑衰退

2021-04-29 K.K MedSci原创

采取健康的生活习惯 "永远不会太早或太晚"

大学学位可能在许多方面都很有用,多年来的研究一直表明,教育可能使人们免受与年龄有关的记忆和思维衰退的影响,4月26日发表在《美国国家科学院院刊》上的研究称,大学学位可能并不能预防你的大脑萎缩。

Lars Nyberg et al, Educational attainment does not influence brain aging, Proceedings of the National Academy of Sciences (2021). DOI: 10.1073/pnas.2101644118

这项研究包括2000多名年龄在29~91岁的欧洲人,在长达11年的时间里,研究人员请他们接受了至少两次核磁共振脑部扫描。正如预期的那样,老年人的脑组织体积比年轻人小(包括海马体,一个涉及记忆的结构),海马体在老年痴呆症的早期阶段经常被损坏。较高的教育水平与较大的脑组织体积只是正常联系。随着年龄的增长,受教育程度高的人和受教育少的人一样,脑组织流失得很快。

挪威奥斯陆大学教授Anders Fjell说:"研究结果表明,在大脑如何随年龄变化方面,教育似乎没有任何预防作用。

据阿尔茨海默氏症协会负责科学项目的克莱尔-塞克斯顿说,教育并不能阻止大脑萎缩,它只是帮助人们更好地应对萎缩。

通常,人们普遍认为,受过良好教育的人可能有更大的 "认知储备",这意味着他们能够有更多的精神敏锐度,即使年纪增长。

教育与大脑皮层体积的变化率没有关联

克莱尔-塞克斯顿补充说,这些发现 "并没有质疑 "先前将较高的教育水平与较低的痴呆症患病风险联系起来的研究。教育也可能有间接的好处,它可以保护人们免受其他痴呆症风险因素的影响。高血压和糖尿病,也与较高的痴呆症风险有关。塞克斯顿说,受过良好教育的人可能有更高的收入、更健康的饮食、更多的锻炼机会和良好的血管健康。

Anders Fjell也认为,这项新发现,它并不反对教育对人的衰老方面有潜在的积极影响。

阿尔茨海默氏症协会目前正在资助一项试验,以更好地掌握哪些具体措施可以帮助延迟或预防痴呆症。该研究正在测试不同的生活方式能否减缓老年人的智力衰?这些措施包括体育锻炼、更好地控制高血压和糖尿病、以及精神上的刺激等活动。塞克斯顿指出,采取健康的生活习惯 "永远不会太早或太晚"。

 
 

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    2021-08-15 drwjr
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    2021-05-10 Doctoryangbai

    生命不息,就不能停止学习和思考

    0

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