This document discusses addictions in the United States. Approximately 9% of the population struggles with addiction, with the largest numbers addicted to tobacco, alcohol, and gambling. Addiction is defined by chronic use, loss of control, compulsion, and continued use despite negative consequences. There are several theories around what causes addiction, including moral, genetic, and cultural factors. Treatment methods include self-help groups, outpatient and inpatient rehabilitation, and prevention efforts target reducing underage drinking and risks for those with family histories of addiction. Addiction is a complex issue that is debated, preventable, manageable, and treatable.