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The LaGuardia Committee report was an official scientific report published in 1944 that questioned the prohibition of cannabis in the United States. [1] [2] The report contradicted claims by the U.S. Treasury Department that smoking marijuana deteriorates physical and mental health, assists in criminal behavior and juvenile delinquency, is physically addictive, and is a "gateway" drug to more ...
The gateway drug effect (alternatively, stepping-stone theory, escalation hypothesis, or progression hypothesis) is a comprehensive catchphrase for the often observed effect that the use of a psychoactive substance is coupled to an increased probability of the use of further substances.
Over time, the marijuana gateway hypothesis has been studied more and more. In one published study, the use of marijuana was shown not a reliable gateway cause of illicit drug use. [67] However, social factors and environment influence drug use and abuse, making the gateway effects of cannabis different for those in differing social circumstances.
Research shows that the actual "gateway" is the illegal drug market. The World Health Organization noted that any gateway effect associated with marijuana use may actually be due to marijuana prohibition because "exposure to other drugs when purchasing cannabis on the black market increases the opportunity to use other illicit drugs."
The drug or other substance has a potential for abuse less than the drugs or other substances in schedules I and II. The drug or other substance has a currently accepted medical use in treatment in the United States. Abuse of the drug or other substance may lead to moderate or low physical dependence or high psychological dependence.
The two main theories, which are not mutually exclusive, are the phenotypic causation (gateway) model and the correlated liabilities model. The causation model argues that smoking is a primary influence on future drug use, while the correlated liabilities model argues that smoking and other drug use are predicated on genetic or environmental ...
"Substance use pertains to using select substances such as alcohol, tobacco, illicit drugs, etc. that can cause dependence or harmful side effects."On the other hand, substance abuse is the use of drugs such as prescriptions, over-the-counter medications, or alcohol for purposes other than what they are intended for or using them in excessive ...
Drug harmfulness is defined as the degree to which a psychoactive drug has the potential to cause harm to the user and is measured in several ways, such as by addictiveness and the potential for physical harm. More objectively harmful drugs may be colloquially referred to as "hard drugs", [34] and less harmful drugs as "soft drugs". [35]