AIM: To observe the changes of the swimming velocity of rats after paradoxical sleep deprivation(PSD), so as to provide certain scientific methods for exercise training.

目的：取消异相睡眠后大鼠游泳速度的变化，为运动训练提供一定的科学方法。

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Physical exercise and engaging in novel brain-stimulating activities - such as the crossword puzzle or Sudoku - are two proven methods for helping keep your brain healthy.

体能训练及参与新鲜的刺激脑力的活动——比如字谜游戏或是数独游戏——就是两种经证实可助你维持大脑健康的方法。

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You'll find a reference for all the methods in the Resources section. The following methods will be important for this exercise.

在参考资料部分可以找到所有方法的参考。

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