It happens to most of us, but is it inevitable(不可避免的)?

　　Neuroscientists are increasingly showing there’s actually a lot that can be done. It turns that the brain needs exercise in much the same way our muscles do, and the right mental exercise can significantly improve our basic cognitive functions. Thinking is essentially a process of making neural connections in the brain. Scientists believe intelligence can expand according to mental effort and practice.

　　Now, a new San Francisco Web-based company has taken it a step further and developed the first “brain training program” to help people regain their mental sharpness. Called Lumosity, it was designed by some of the leading experts in neuroscience and cognitive psychology from Stanford University.

　　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.

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