Caucasian Genetic Trait Triples Chances of Cocaine Abuse
One study shows that a genetic trait found in caucasians triples the possibility of cocaine abuse:
"Nearly one in five whites could carry a genetic variant that substantially increases their odds of being susceptible to severe cocaine abuse, according to new research.
This genetic variant, characterized by one or both of two tiny gene mutations, alters the brain's response to specific chemical signals. In the study, led by Ohio State University researchers, the variant was associated with a more than threefold increase in the odds that carriers will be susceptible to severe cocaine abuse leading to fatal overdosing, compared to non-carriers."