【轻松英文阅读】咖啡因对大脑的危害
时间：2018-12-28 作者：英语课 分类：轻松英文阅读
英语课
Those all-nighters powered by caffeine may be doing more damage than expected.
According to a recent study, brain development in teenagers can be delayed by over-consumption of caffeine. Teenage brains need solid sleep for their development. Caffeine can prevent teenagers from getting the sleep they need.
During deep sleep, networks in the brain are optimized 1 and made stronger. This process of optimization 2 is inhibited 3 when teens are not able to experience deep sleep. This comes at a crucial time when the teenager’s brain is maturing very rapidly and scientists worry that it could have a long-lasting impact.
And it doesn’t take much, either. Just three to four cups of coffee a day can be enough to interfere 4 with the delicate sleep cycle.
The experiment was carried out on 30-day old rats. As expected the caffeinated rats did not sleep well and had poor neural 5 connections. Moreover, their behavior changed; they became more introverted and less curious compared to rats that did not receive caffeine.
1 optimized
adj.最佳化的，（使）最优化的v.使最优化，使尽可能有效( optimize的过去式和过去分词 )
- We are often asked whether consumer Web sites should be optimized for beginners or intermediates. 我们常常被问到这样的问题：消费类网站究竟应该为新手而优化，还是应该为中间用户而优化？ 来自About Face 3交互设计精髓
- GOOGLE Advertising optimized sequence, greatly increasing the advertising effect. 优化了GOOGLE广告位排列顺序，大大增加了广告效果。 来自互联网
2 optimization
n.最佳化，最优化；优选法；优化组合
- Development of detergents has required optimization of the surfactants structure. 发展洗涤剂时，要求使用最恰当的表面活性剂结构。 来自辞典例句
- In the case of productivity tools and other non-entertainment-oriented products, this optimization means minimizing work. 对于生产工具和其他非娱乐导向的产品而言，这意味着将工作负荷降至最低。 来自About Face 3交互设计精髓
3 inhibited
a.拘谨的，拘束的
- Boys are often more inhibited than girls about discussing their problems. 男孩子往往不如女孩子敢于谈论自己的问题。
- Having been laughed at for his lameness,the boy became shy and inhibited. 那男孩因跛脚被人讥笑，变得羞怯而压抑。