Lumosity, is not only an online place to exercise your mental skills. That’s because they have integrated(整合)these exercises into a Web-based program allowing you to systematically improve your memory and attention. The program records your progress and provides detailed feedback on your improvement. Most importantly, it constantly modifies the games you play to build on the strengths you are developing—much like an effective exercise routine requires you to increase resistance and vary your muscle use.

　　Does it work?

　　Apparently it does. In controlled clinical trials, Lumosity was shown to greatly improve basic cognitive functions. One study showed students improved their scores on math tests by 34 percent after using Lumosity for six weeks, significantly greater gains than those made by other students in the same class, not training with the Lumosity program.

　　The company says its users have reported clearer and quicker thinking, improved memory for names, numbers, directions, increased alertness, awareness, mood, and better concentration at work or while driving.

　　Lumosity is currently offering a free trial of their program to new users so that you can see how well it works before you decide to subscribe.

　　【文章大意】这是一篇说明文。文章主要介绍一些中年人有时会突然忘事, 这会影响他们的工作、社会和个人生活, 科学家认为对大脑进行恰当的锻炼有利于提高记忆力和注意力, 还介绍了一家旧金山的网络公司设计了一种能提高记忆力的叫做Lumosity的程序。

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