Examlex
What is the name for a country whose collapse would cause international migration, war, pollution, disease epidemics, or other international security problems?
Depressant
A substance that reduces arousal or stimulation, affecting the central nervous system.
Stimulant
A substance that raises levels of physiological or nervous activity in the body.
Opiate
Refers to a group of drugs derived from opium used for their analgesic, sedative properties, and can lead to addiction.
Endorphins
Natural chemicals produced in the brain that act as painkillers and are associated with feelings of pleasure and euphoria.
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