A decline is one's grades after a period of regular marijuana smoking supports __________.

Question

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The amotivational syndrome suggests that chronic marijuana use can lead to a decline in motivation and productivity, which may contribute to a decline in academic performance such as lower grades. The gateway hypothesis proposes that marijuana use can lead to the use of harder drugs, the anandamide hypothesis suggests that marijuana affects the brain's endocannabinoid system, and the maturational hypothesis suggests that adolescent marijuana use can negatively impact brain development.

A Decline Is One's Grades After a Period of Regular