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Psychoactive drug
chemical substance that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition, or behavior
Substance use disorder
treatable, chronic diseases characterized by a problematic pattern of use of a substance
Tolerance
the capacity to endure continued subjection to something
Withdrawal
the physical and mental symptoms that a person has when they suddenly stop or cut back the use of an addictive substance
Depressants
drug that lowers neurotransmission levels, which is to depress or reduce arousal or stimulation, in various areas of the brain.
Alcohol use disorder
medical condition characterized by an impaired ability to stop or control alcohol use despite adverse social, occupational, or health consequences.
Barbiturates
any of a family of drugs derived from barbituric acid that depress the activity of the central nervous system
Opiates
A substance used to treat pain or cause sleep
Stimulants
a class of drugs that speed up messages travelling between the brain and body.
Nicotine
An addictive, poisonous chemical found in tobacco. he negative stress response, often involving negative affect and physiological reactivity
Cocaine
stimulates the reward pathway in the brain.
Amphetamines
psychostimulant drugs that abnormally speed up the functions of the brain and body
Methamphetamine
a powerful, highly addictive stimulant that affects the central nervous system
Ecstasy
a feeling of intense pleasure and elation, including that experienced in some mystical states,
Hallucinogens
a diverse group of drugs that alter perception, thoughts, and feelings
LSD
a drug that can alter a person's perception of reality and vividly distort the senses
THC
the psychoactive substance that produces the “high” associated with smoking marijuana and can also lead to central nervous system depression
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