Saliva is easy to collect using gum, the process is painless and the test doesn't require a battery or computer to run.

唾液，利用口香糖是很容易收集到的，这个过程是没有任何痛苦的，况且这个测试是不需要使用一节电池或运行一台电脑。

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A mock-up, then, is something you pungle together out of duct tape, chewing gum, paper clips, cardboard, and paint just to test a concept that you don't necessarily want to implement.

模型是用管道粘胶、口香糖、纸夹和油漆等制成的试验品，用于测试那些目前还不想实现的概念。

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After 14 weeks, students who chewed gum had a 3% increase in standardized math test scores and had final math grades better than the others.

14周后，在标准数学考试中，嚼口香糖学生的成绩平均提高了3%；在期末考试中，嚼口香糖学生的数学成绩也比不嚼口香糖的学生高。

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An especially significant 2011 study, reported on by Live Science, found that chewing gum before taking a test improved performance, but chewing gum throughout the test did not.

FORBES: Chew Yourself a Better Brain