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2016-09-24	Sanjid Efat	62	Check this topic
2016-09-24	Sanjid Efat	50	Check this topic
2018-11-03	kap1990	26	Check this topic

Topic title: As people grow older, an enzyme known as PEP increasingly breaks down the neuropeptide chemicals involved in learning and memory. But now, researchers have found compounds that prevent PEP from breaking neuropeptides apart. In tests, these compounds almos

Topic category: GMAT/GRE Argument Task