A new hobby will challenge your brain in new ways.

一个新的爱好将是对你头脑的一个新挑战。

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Games are a wonderful way to tease and challenge your brain.

玩游戏是一个挑战大脑的好方法。

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Reading Shakespeare, learning to cook and building an airplane out of tooth picks all will challenge your brain and give you something to think about.

阅读莎士比亚，学习烹饪，用牙签造架飞机，这些都将挑战你的头脑，让你思考。

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However, even if you didn't finish high school or have other factors you can't change, you can still challenge your brain to preserve mental function, Fiocco says.

CNN: Experts reveal best ways to save an aging brain