Why Does Drug Relapse Happen Even After Decades of Sobriety?

Why does drug relapse happen even after decades of sobriety?
Addiction as a disease has both "a genetic underpinning and social stressors," Krakower said. The latter "may trigger a cascade that causes someone to start with the disease or go through a relapse." RELATED: JENNIFER LAWRENCE, 'HUNGER GAMES' …
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