Primates that aren't predisposed to addiction will become compulsive users of cocaine as the number of D2 receptors declines in their brains, Dr. Volkow noted.
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Prev: LATE last year, in an operation dubbed "Balkan Warrior", police in South America seized 2.7 tonnes of cocaine, most of it from a yacht moored in Uruguay.
Next: The phrase "substance abuse" is often used instead of "drug abuse" to make clear that substances such as alcohol and tobacco can be just as harmfully misused as heroin and cocaine.
