abuse- any unnecessary or improper use of chemical substances for nonmedical purposes. 10.Illegal drugs- chemical substances that people of any age may not lawfully manfacture, possess, buy, or sell.
11.Illicit drug use- the use or sale of any sbstance that is legal or otherwise not permitted. 12.Overdose-a strong, sometimes fatal reaction to taking a large amount of a drug. 13.Psychological dependence-a condition when a person believes that a drug is needed in order to feel good or to function normally. 14.Physiological dependence- a condition in which the user has a chemical needfor the drug. 15.Addiction- a physiological or psychological dependence on a drug. 16.Marijuana- a plant whose leaves, buds, and flowers are smoked for their intoxicating effects. 17.Paranoia-an irratational suspicousness or distrust of others. 18.Inhalants- substances whose fumes are sniffed and inhaled to achieve a mind-altering effect. 19.Anabolic-androgenic steroids- synthetic substances that are similar to the male sex hormone testosterone. 20.Psychoactive drugs- chemicals that affect the central nervous system and alter activity in the brain. 21.Stimulants- drugs that speed up the central nervous system. 22.Euphoria- a feeling of intense well-being or elation. 23.Depressants- drugs that tend to slow down the central nervous
system. 24.Narcoticts-specific drugs derived from the opium plant that are obtainable only by prescription and are used to relieve pain. 25.Hallucinogens- drugs that alter moods, thoughts, and sense perceptions including vision, hearing, smell and touch. 26.Designer drugs- synthetic substances meant to imitate the effects of hallucinogens and other dangerous drugs. 27.Drug-free school zones-areas within 1,000 feet of schools and designated by signs, within people caught selling drugs receive especially severe penalties. 28.Drug watches- organized community efforts by neighborhood residents to patrol, monitor, report, and otherwise try to stop drug deals and drug abuse.