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Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods that are harmful to the individual or others. It is a form of substance-related disorder . Differing definitions of drug abuse are used in public health , medical, and criminal justice contexts.
The following is a table of drugs organized by their year of discovery. Naturally occurring chemicals in plants, including alkaloids, have been used since pre-history.In the modern era, plant-based drugs have been isolated, purified and synthesised anew.
Drug use is not evenly distributed in the population. Research has shown that the prevalence of substance use problems varies in fairly reliable ways according to age, sex, and sociodemographic characteristics. Overall, and across drug categories—including alcohol, coffee, cannabis, and nicotine—men make up the primary drug demographic. [47]
"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 ...
1979: Illegal drug use in the U.S. peaked when 25 million of Americans used an illegal drug within the 30 days prior to the annual survey. [27] 1986: The Anti-Drug Abuse Act of 1986 was enacted into law by Congress. It changed the system of federal supervised release from a rehabilitative system into a punitive system.
Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...
Recreational drug use is the use of a drug (legal, controlled, or illegal) with the primary intention of altering the state of consciousness through alteration of the central nervous system in order to create positive emotions and feelings. The hallucinogen LSD is a psychoactive drug commonly used as a recreational drug. [37]
Drug addiction, which belongs to the class of substance-related disorders, is a chronic and relapsing brain disorder that features drug seeking and drug abuse, despite their harmful effects. [31] This form of addiction changes brain circuitry such that the brain's reward system is compromised, [ 32 ] causing functional consequences for stress ...