【轻松英文阅读】咖啡因对大脑的危害

 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 optimized¹ and made stronger. This process of optimization² is inhibited³ 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 interfere⁴ 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 neural⁵ 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 )

参考例句：

• 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

参考例句：

• 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

参考例句：

• 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。

4 interfere   

v.(in)干涉，干预；(with)妨碍，打扰

参考例句：

• If we interfere, it may do more harm than good.如果我们干预的话，可能弊多利少。
• When others interfere in the affair,it always makes troubles. 别人一卷入这一事件，棘手的事情就来了。

5 neural   

adj.神经的，神经系统的

参考例句：

• The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。
• The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。