Glossary
Addiction: A chronic, relapsing disease characterized by
compulsive drug-seeking and abuse and by long-lasting chemical changes
in the brain.
Cannabinoids: Chemicals that help control mental and physical
processes when produced naturally by the body and that produce
intoxication and other effects when absorbed from marijuana.
Carcinogen: Any substance that causes cancer.
Dopamine: A brain chemical, classified as a neurotransmitter,
found in regions of the brain that regulate movement, emotion,
motivation, and pleasure.
Hippocampus: An area of the brain crucial for learning and
memory.
Hydrocarbon: Any chemical compound containing only hydrogen
and carbon.
Psychoactive: Having a specific effect on the mind.
THC: Delta-9-tetrahydrocannabinol; the main active ingredient
in marijuana, which acts on the brain to produce its effects.
Withdrawal: Symptoms that occur after use of a drug is reduced
or stopped.
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