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Definitions of Commonly Used
The Evolution of Social
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acid action activity addicts alcohol amount amphetamine anabolic steroids analgesic anesthetic aspirin barbiturates become behavior block blood pressure body brain caffeine called cancer cannabis cause cells central nervous system Chapter chemical chronic cigarettes cocaine compounds damage death decrease depression developed disease dopamine dosage dose drinking Drug Abuse drug dependence enzyme estrogen example fects feel hallucinogenic heroin hormone increase inhalation inhibit injection levels liver male marijuana mescaline metabolism methadone methaqualone minor tranquilizers morphine muscle narcotics nerve neurons neurotransmitter nicotine norepinephrine occur opiates opium oral contraceptives pain patients person physical dependence physicians physiological pill placebo potential pregnancy prescription problem produce progestin programs psychoactive drugs psychological reaction receptors reduce release reported response result sedative serotonin sexual side effects sleep smoking social stimulation studies substances symptoms tion tissue tive tobacco tolerance toxic treat treatment users usually withdrawal women