The document summarizes statistics and research on gambling and gambling addiction. It notes that 85% of Americans have gambled, with 65-80% gambling in the past year. Problem gambling is defined as an urge to gamble despite negative consequences. Pathological gambling is a clinical diagnosis involving uncontrollable gambling behavior. Research suggests genetic and neurological factors, like imbalances in dopamine and serotonin, may contribute to gambling addiction. Treatments include counseling, support groups, and some medications.