Study Reveals Surge in Gambling Addiction Following Legalization of Sports Betting

Apr 18, 2025

A new study, published in JAMA Internal Medicine and led by researchers from the University of California San Diego Qualcomm Institute and School of Medicine, reveals a dramatic increase in sports betting and gambling addiction help-seeking since the landmark Murphy v. NCAA Supreme Court decision in 2018 paved the way for states to legalize sports betting. “When the Supreme Court legalized sportsbooks — a venue where people can wager on various sports competitions — in Murphy
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