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Learning Objectives Identify types of gateway drugs Understand how caffeine, tobacco, alcohol, marijuana work in the human body Explain the difference between use, misuse, abuse and dependence of gateway drugs Demonstrate familiarity with drug use policies and laws and the impacts they have on legal and illegal use related to the classes of gateway drugs Image 4.1 Image of Several Used Cigarette Butts Learning Content A drug is a chemical agent capable of producing biologic responses within the body

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First choose the day you plan to quit (make it soon)

Flling C, Dinan TG, Cryan JF (2019) Gut microbe to brain signaling: what happens in vagus

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