As many people hit middle age, they often start to notice that their memory and mental clarity are not what they used to be.
当许多人步入中年时，他们常常开始注意到自己的记忆力和思维清晰度不如从前了。
3 seemingly innocent, this loss of mental focus can potentially have a(n) 4 impact on our professional, social, and personal 5 .
3看似无害，这种注意力丧失可能会对我们的职业、社交和个人5产生4影响。
It 6 out that the brain needs exercise in much the same way our muscles do, and the right mental 7 can significantly improve our basic cognitive 8 .
结果表明大脑需要像肌肉一样进行锻炼，而适当的脑力锻炼可以显著提升我们的基本认知功能。
11 , because these connections are made through effort and practice, scientists believe that intelligence can expand and fluctuate 12 mental effort.
11 ，因为这些联系是通过努力和练习建立的，科学家认为智力可以随着 12精神努力而扩展和波动。
Now, a new Web-based company has taken it a step 13 and developed the first "brain training program" designed to actually help people improve and regain their mental 14 .
现在，一家新的基于网络的公司又向前迈进了一步 13，开发出了首个旨在真正帮助人们提高和恢复其心理 14的“大脑训练程序”。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。