Anatomy of Addiction: How Heroin and Opioids Hijack the Brain

January 11, 2016 | Jack Rodolico, NPR

When Jack O'Connor was 19, he was so desperate to beat his addictions to alcohol and opioids that he took a really rash step. He joined the Marines. "This will fix me," O'Connor thought as he went to boot camp. "It better fix me or I'm screwed." After 13 weeks of sobriety and exercise and discipline, O'Connor completed basic training, but he started using again immediately. "Same thing," he says. "Percocet, like, off the street. Pills."

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