AARP Hearing Center
When addiction researcher Shane Kraus went for a haircut recently, he got a small but telling reminder of how big sports gambling in America has become.
Midway through the trim, his barber, a man in his 60s, paused, lifted his phone and said, “Hold on, I have to place a bet.”
The barber told Kraus he hadn’t always been a sports bettor. But he said he decided to give it a try because all the commercials for sports apps made it look like fun. Now, he places weekly bets on the Las Vegas Raiders.
To Kraus, a clinical psychologist at the University of Nevada, Las Vegas, the moment was telling.
“My question that I want to know now is: How many people are getting into sports betting who never did before, because it’s just so accessible and so easy?” he says.
And as more people start betting, he adds, the number of people who will develop a gambling problem will almost certainly rise. “The more you increase something … the more likely you’re going to have an increase in problems,” he says.
Researchers say older adults may have a higher risk of developing a problem.
Gambling is booming — especially sports betting
National data shows gambling has exploded in the U.S. in recent years. About 57 percent of American adults participated in some form of gambling in the past year, the highest level ever recorded, according to a 2025 survey by the American Gaming Association (AGA).
The spike has been fueled by the rapid expansion of sports betting. A 2018 Supreme Court ruling cleared the way for states to allow it, and at least 38 states and Washington, D.C., have legalized it, according to the National Conference of State Legislatures.
Betting apps that allow you to place wagers from your smartphone have accelerated the trend, experts say.
Get Help for a Gambling Problem
- Call: 1-800-GAMBLER
- Text: 800GAM
- Chat: www.1800gamblerchat.org
Many gambling apps function like video games, with fast action, eye-catching graphics and constant incentives that pop up and keep people engaged, says Aliya Pasik, director of addiction medicine at the Rochester Center for Behavioral Medicine in Rochester Hills, Michigan, and author of The Sobriety Manual.
“They become so easily hooked because it’s bright lights, it’s dopamine,” she says.
Those figures reveal “a massive shift” in the way people gamble, Kraus says, from placing wagers in person at casinos to placing them on phones and laptops.
Data compiled by the AGA shows that combined revenue from commercially operated land-based casinos, sports betting and iGaming increased in the third quarter by more than 7.2 percent year over year, reaching $18.96 billion.
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