New study shows four pivotal ages for your brain
4,000 brain scans of people up to the age of 90 have revealed our brains go through five distinct eras.
The first is childhood. This is when the brain is rapidly growing but getting less efficient over time.
Then, a surprisingly long period of adolescence kicks in, starting at the age of nine and lasting until you're 32 when the brain peaks.
You then get the longest stage, adulthood, which lasts three decades.
Then comes 66 and early ageing. The effects are subtle, but the brain is beginning to fragment as smaller regions work tightly together – it's like a band starting their own solo projects.
At 83, this accelerates as we enter the final phase.
词汇表
pivotal [ˈpɪvətl] adj. 关键的，核心的
brain scan [skæn] 脑部扫描
era [ˈɪərə] n. 阶段，时期，时代
adolescence [ˌædəˈlesns] n. 青春期，青少年时期
kick in 开始生效，起作用
peak [piːk] vi. 达到顶峰，达到最佳状态
adulthood [ˈædʌlthʊd] n. 成年，成年期
subtle [ˈsʌtl] adj. 微妙的，细微的，不明显的
fragment [ˈfræɡmənt] v. （使）破碎，分裂，碎片化
tightly [ˈtaɪtli] adv. 紧密地，牢固地
solo project [ˈsəʊləʊ] 个人作品，单飞计划
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