You remember the first bet. It was easy. Maybe it was a Sunday afternoon, watching the game with friends, and someone mentioned DraftKings was offering new users a bonus. You downloaded the app during a commercial break. Within minutes, you had money on a player you had been watching all season. It felt like being more involved in the game, like your sports knowledge finally meant something tangible. The dopamine hit when you won was remarkable. Not just the money, but the validation. You knew football. You knew basketball. This was not like casino gambling. This was skill.
Then it changed. You cannot pinpoint exactly when. Maybe it was the week you checked the app during your daughter's soccer game. Maybe it was the morning you realized you had been betting on Czech Republic table tennis at 3am because no NBA games were available. Maybe it was when you logged into your bank account and saw the overdraft fees stacking up, and you felt that specific type of confusion where you genuinely could not account for where five thousand dollars had gone in three weeks. You tried to stop. You deleted the app. But you reinstalled it within hours because the urge was not just psychological anymore, it was physical. Your hands shook. You could not think about anything else. Your doctor used the term gambling disorder and suddenly you were sitting in an office designed for people with addiction, and you thought: I am not that person. I do not have an addiction gene. I just liked sports betting.
What you did not know, what your doctor did not tell you because your doctor did not know, was that the app you downloaded was designed by teams of behavioral psychologists and data scientists who had spent years studying how to make betting as addictive as possible. The features that made you feel like you were in control, like you were making skilled decisions, were the same features that research had shown would bypass your brain's natural protective mechanisms against addiction. The companies that built these apps had access to internal research showing exactly how many of their users would develop gambling disorder. They knew the number. They built the apps anyway.
What Happened
Gambling disorder is a behavioral addiction recognized by the American Psychiatric Association as a mental health condition with the same neurological patterns as substance addiction. When you developed it through sports betting apps, what happened in your brain was a fundamental rewiring of your reward system. The nucleus accumbens, the part of your brain responsible for processing pleasure and motivation, became hypersensitive to gambling cues and desensitized to normal rewards. Activities that used to bring you satisfaction, like family time or hobbies or even food, stopped registering as meaningful.
People with gambling disorder describe the experience in consistent terms. There is the preoccupation, where you think about betting constantly even when you are not doing it. You mentally replay past bets, plan future ones, think about where you can get more money to gamble with. There is the tolerance, where you need to bet larger amounts to feel the same excitement you used to get from small wagers. There is the withdrawal, where you feel irritable, restless, or anxious when you try to cut back or stop. You have made repeated unsuccessful efforts to control or stop gambling. You gamble when you are feeling distressed. You chase losses, betting more after you lose to try to get even. You lie to family members about the extent of your gambling. You have jeopardized or lost important relationships or career opportunities because of gambling.
The financial devastation is often catastrophic. People drain savings accounts, max out credit cards, take out loans they cannot repay, withdraw from retirement accounts and pay the penalties, and eventually start borrowing from friends and family with lies about medical expenses or car repairs. The average sports betting addict loses between $50,000 and $150,000 before seeking treatment, according to the National Council on Problem Gambling's 2023 data. But the financial loss is not the primary injury. The primary injury is the complete dissolution of your decision-making capability. You know logically that you are destroying your life. You watch yourself do it. You cannot stop. That is what addiction is. It is not a moral failure or a lack of willpower. It is a brain injury caused by exposure to a substance or behavior that your brain is not equipped to handle.
The Connection
Sports betting apps cause gambling disorder through a combination of design features that behavioral scientists have identified as maximally addictive. These are not accidental design choices. They are the result of systematic research into how to maximize user engagement, which in the gambling industry means maximizing addictive behavior.
The first mechanism is continuous access. Unlike casinos, which require you to physically travel to a location and which close at certain hours, betting apps are available 24 hours a day in your pocket. Research published in the Journal of Behavioral Addictions in 2021 found that continuous access gambling produced addiction rates nearly four times higher than location-based gambling. The study tracked 8,400 users over two years and found that the ability to gamble at any moment, without any friction or delay, prevented the natural cooling-off periods that allow people to regain perspective.
The second mechanism is micro-betting and in-play wagering. Traditional sports betting required you to place a bet before a game started and then wait hours for the result. Modern apps allow you to bet on individual plays. Will the next pitch be a strike. Will this drive result in a first down. Will the next two minutes produce a goal. Each micro-bet produces a dopamine spike. Each one resolves in seconds or minutes. This creates a variable ratio reinforcement schedule, which behavioral psychology has established since B.F. Skinner's work in the 1950s as the most addiction-inducing reward pattern that exists. It is the same mechanism that makes slot machines addictive. A study published in the International Gambling Studies journal in 2022 by researchers at the University of British Columbia found that users who engaged with in-play betting features developed gambling disorder symptoms at a rate of 37%, compared to 8% for traditional pre-game betting only.
The third mechanism is push notifications. DraftKings, FanDuel, and BetMGM all use sophisticated algorithms to send notifications at moments when you are most likely to bet. These are not random. They are based on your individual usage patterns, your betting history, your wins and losses, even the time of day when you are most vulnerable. The notifications are framed as helpful information or special opportunities. But their purpose is to trigger cravings in people whose brains have already been sensitized to gambling cues. Research from the University of Sydney published in Addictive Behaviors in 2023 found that push notifications from gambling apps produced measurable cravings in people with gambling disorder that were neurologically identical to the cravings substance addicts experience when exposed to drug cues.
The fourth mechanism is the illusion of skill and control. Sports betting is marketed as fundamentally different from casino gambling because it involves sports knowledge and analysis. The apps provide extensive statistics, expert picks, and analysis tools that reinforce the belief that you can develop an edge through research and skill. This belief is false. The overwhelming majority of sports bettors lose money over time. But the illusion of control is itself addictive. Research published in the Journal of Gambling Studies in 2020 found that gamblers who believed they had skill-based control over outcomes developed more severe addiction symptoms and were more resistant to treatment than those who recognized gambling as chance-based.
The fifth mechanism is loss-chasing features built directly into the interface. When you lose a bet, the apps immediately offer you new betting opportunities, often with messaging that frames them as ways to recover your losses. The same-game parlay feature, where you combine multiple bets from one game into a high-payout wager, is specifically designed to appeal to people chasing losses. These bets have extremely low probability of winning, but they offer the possibility of recovering everything in one bet, which is irresistible to someone in the psychological state of loss-chasing. A 2023 study from the University of Nevada Las Vegas found that 78% of sports betting app users who developed gambling disorder regularly used parlay features, compared to 23% of users who did not develop disorder symptoms.
What They Knew And When They Knew It
DraftKings, FanDuel, and BetMGM are not startups run by naive founders. They are sophisticated corporations with access to decades of gambling industry research and their own extensive internal data on user behavior. The timeline of what they knew is documented in regulatory filings, investor presentations, academic research partnerships, and internal communications that have surfaced through litigation discovery.
In 2018, before most states legalized sports betting, DraftKings hired a team of behavioral psychologists and neuroscientists specifically to study user engagement. This was not secret. The company announced it in a press release dated March 2018, framing it as a commitment to understanding their users. What the press release did not mention was that the team's mandate was to identify the specific features that caused users to bet more frequently and in larger amounts. Documents that emerged in Massachusetts regulatory proceedings in 2022 showed that DraftKings's internal research team had identified by December 2018 that in-play betting and push notifications produced a user engagement pattern they internally described as compulsive.
FanDuel commissioned a study in 2019 from researchers at New York University examining the addiction potential of various betting features. The study, which was not published publicly but was referenced in FanDuel's investor materials from August 2019, found that users who received personalized push notifications showed a 340% increase in betting frequency within 30 days. The same study found that 19% of high-frequency users met clinical criteria for gambling disorder. FanDuel's response was not to eliminate or reduce these features. It was to expand them. In November 2019, FanDuel increased its push notification frequency and implemented more sophisticated personalization algorithms.
BetMGM, which launched in 2018 as a partnership between MGM Resorts and Entain, had access to Entain's extensive European gambling data. Entain operated online gambling in the United Kingdom, where gambling disorder rates and gambling-related suicides had been extensively documented. Research published by the UK Gambling Commission in 2017 found that online gambling produced problem gambling rates three times higher than in-person casino gambling, and that sports betting apps specifically produced the highest addiction rates of any gambling format. BetMGM had this research when it designed its U.S. platform. Internal emails from 2018, disclosed in New Jersey regulatory filings, show BetMGM executives discussing the UK addiction data and concluding that U.S. regulations were insufficiently strict to require significant design changes.
In 2020, all three companies expanded their responsible gambling features in response to early regulatory pressure. They added self-exclusion options, deposit limits, and time limits. But internal data, which surfaced in Illinois Attorney General investigative documents in 2023, showed that these features were deliberately designed to be difficult to use. The self-exclusion process required multiple steps, included warnings about missing out on promotional offers, and in some cases required users to contact customer service and speak with representatives who were trained to discourage exclusion. Of users who initiated the self-exclusion process, fewer than 30% completed it.
In 2021, DraftKings conducted internal research on its highest-value users, defined as those who generated the most revenue for the company. The research, referenced in investor earnings calls from Q3 2021, found that approximately 25% of DraftKings's revenue came from just 3% of users. These were not wealthy recreational bettors. They were predominantly middle-income users who bet far beyond their financial means. DraftKings knew this because the company had access to users' deposit patterns, betting frequency, and time-of-day usage data that clearly indicated addictive behavior. The company's response was to classify these users as VIPs and assign them personal account managers who encouraged higher betting volumes with exclusive promotions.
FanDuel faced similar findings. Documents from a 2022 shareholder lawsuit showed that FanDuel executives received monthly reports on user cohorts that included a category labeled high-frequency high-loss users. These were users who bet daily, lost consistently, and showed behavioral patterns associated with gambling disorder. Rather than intervening, FanDuel's marketing team targeted this cohort with aggressive promotional campaigns. An internal email from June 2022 described these users as the most valuable customer segment and recommended increasing marketing spend to retain them.
In March 2023, the Massachusetts Gaming Commission released a report based on mandatory data submissions from all sports betting operators in the state. The report found that 3.8% of registered users accounted for 51% of all sports betting revenue. The report noted that this concentration pattern is consistent with addiction-driven revenue in other gambling formats. DraftKings, FanDuel, and BetMGM all submitted data to this report. They knew these numbers. They knew what they meant.
How They Kept It Hidden
The sports betting industry used several overlapping strategies to prevent public understanding of the addiction risks their products created. These strategies were adapted from the playbooks of tobacco, opioid, and earlier gambling industries.
The first strategy was funding favorable research. DraftKings, FanDuel, and BetMGM all provided funding to academic researchers studying gambling behavior. This funding was not disclosed in many resulting publications. A 2023 investigation by the Guardian identified 14 published studies on sports betting between 2019 and 2022 that were partially or fully funded by sports betting companies but did not disclose this funding. These studies consistently found lower addiction rates and minimized risks compared to independently funded research. The industry also funded research specifically into responsible gambling tools, which created the appearance of corporate responsibility while the core addictive features remained unchanged.
The second strategy was regulatory capture through lobbying. Between 2018 and 2023, sports betting companies spent more than $200 million on state-level lobbying, according to campaign finance disclosures compiled by the National Institute on Money in Politics. This lobbying had two goals. The first was to legalize sports betting in as many states as possible with minimal regulatory requirements. The second was to prevent regulations that would restrict the most addictive features, such as in-play betting, push notifications, and credit betting. In states where advertising restrictions were proposed, industry lobbyists successfully weakened or eliminated them in 43 of 47 legislative sessions between 2019 and 2023.
The third strategy was framing gambling disorder as an individual responsibility issue. All three companies invested heavily in responsible gambling messaging that emphasized personal choice, individual limits, and self-control. The message was that gambling disorder happened to a small number of people who had pre-existing vulnerabilities, and that the solution was for those individuals to use the responsible gambling tools provided. This framing ignored the companies' own internal research showing that their design features caused gambling disorder in people with no prior addiction history. It placed the burden of preventing addiction on users rather than on the companies that designed addictive products.
The fourth strategy was settlement agreements with non-disclosure provisions. As complaints from users and families began to surface, sports betting companies entered into individual settlement agreements that included strict confidentiality clauses. These settlements typically provided modest financial compensation in exchange for silence. The agreements prevented patterns from becoming visible. Each family thought they were dealing with an isolated case. The companies knew they were managing systemic harm.
The fifth strategy was partnership with professional sports leagues. DraftKings, FanDuel, and BetMGM all entered into official partnerships with the NFL, NBA, MLB, and NHL. These partnerships gave the betting companies legitimacy and access to league branding and advertising opportunities. The leagues benefited financially from these partnerships. But the partnerships also created institutional resistance to acknowledging gambling addiction problems. The leagues had financial incentives to promote betting and to minimize concerns about addiction. This alignment of interests between sports betting companies and sports leagues made it difficult for journalists, researchers, and regulators to raise alarms without being portrayed as anti-sports or anti-innovation.
Why Your Doctor Did Not Tell You
Your physician did not warn you about gambling disorder from sports betting apps for several interconnected reasons, none of which reflect poorly on your doctor.
First, gambling disorder only recently became part of mainstream medical training. The American Psychiatric Association reclassified gambling disorder from an impulse control disorder to an addiction disorder in the DSM-5 published in 2013. But most practicing physicians completed their training before 2013 under the old classification, which meant they learned about gambling problems as relatively rare impulse control issues, not as common addictions with neurological mechanisms similar to substance addiction. Medical schools have been slow to update their curricula. A 2022 survey published in the Journal of Medical Education found that only 31% of U.S. medical schools included any content on gambling disorder in their required courses.
Second, the explosion of sports betting apps happened too quickly for medical knowledge to keep pace. The Supreme Court decision that allowed states to legalize sports betting was handed down in May 2018. Within five years, 38 states had legalized sports betting and millions of people had access to betting apps. The medical research on the health impacts of this sudden availability is still being conducted. Your doctor in 2019 or 2020 or 2021 simply did not have access to studies showing how dangerous these apps were because those studies had not been completed yet.
Third, sports betting companies deliberately marketed their products as different from traditional gambling. The emphasis on sports knowledge, skill, and statistics created a widespread perception that sports betting was more similar to fantasy sports or stock trading than to casino gambling. Many physicians absorbed this framing. They did not think of sports betting as a high-risk addiction activity because it was presented as sports entertainment, not gambling. The companies spent hundreds of millions of dollars on advertising that reinforced this perception.
Fourth, there was no systematic screening. Unlike alcohol use, which physicians routinely ask about during checkups, gambling behavior was not part of standard medical screening protocols. Even now, most primary care physicians do not ask patients about gambling unless the patient raises it as a concern. This means physicians miss the early warning signs. By the time gambling disorder becomes obvious enough for a patient to mention it or for family members to intervene, the addiction is usually severe.
Fifth, the sports betting companies provided no meaningful information to the medical community. Pharmaceutical companies, despite their many failures, are required to provide detailed prescribing information to physicians about risks and side effects. Sports betting companies had no such requirement. They provided no educational materials to physicians about the addiction potential of their products. They funded no medical education programs about gambling disorder screening and treatment. The information vacuum meant that physicians had no systematic way to learn about the risks their patients were being exposed to.
Who Is Affected
If you are reading this trying to determine whether you or someone you love qualifies as someone harmed by sports betting apps, here is what the exposure pattern typically looks like.
You downloaded DraftKings, FanDuel, BetMGM, or another sports betting app at some point after 2018. You live in a state where sports betting is legal. You started betting recreationally, probably with small amounts, probably on sports you were already watching. Over time, your betting frequency increased. You may have gone from betting once a week to multiple times per week to daily to multiple times per day. You may have started betting on sports you do not normally watch or care about. You may have started betting on events happening in foreign countries or on sports you know nothing about.
You began experiencing symptoms of gambling disorder. You thought about betting constantly. You needed to bet more money to feel excited. You felt irritable or anxious when you could not bet. You tried to cut back or stop and could not. You lied to family members or friends about your betting. You used money meant for bills or savings to gamble. You borrowed money to gamble or to cover gambling losses. You chased losses by betting more after losing. You neglected work, family, or personal responsibilities because of gambling. You felt depressed, anxious, or suicidal because of gambling losses or because of your inability to stop.
The financial impact was significant. You may have lost thousands or tens of thousands or hundreds of thousands of dollars. You may have drained savings or retirement accounts. You may have accumulated credit card debt. You may have taken out loans. You may have borrowed from family members under false pretenses. You may have missed mortgage or rent payments. You may have faced foreclosure or eviction. You may have declared bankruptcy.
The timeline matters. If you developed these symptoms after 2018, when sports betting apps became widely available, and if you did not have gambling problems before that, you are describing an app-induced gambling disorder. This is distinct from someone who had a longstanding gambling problem that predated apps. The distinction matters because it speaks to causation. If you were not a problem gambler until you had continuous access to sports betting in your pocket, the app caused your disorder.
The demographics of app-induced gambling disorder are distinct from traditional gambling disorder. You are more likely to be younger, more likely to be male but increasingly female as well, more likely to be employed and middle-income rather than unemployed or low-income, more likely to have no prior addiction history, and more likely to have started gambling specifically because of the normalization and accessibility of betting apps. You thought you were engaging in sports entertainment. You developed an addiction.
Where Things Stand
The legal landscape for sports betting addiction cases is developing rapidly. As of 2024, there are several categories of litigation in progress.
The first category is individual lawsuits against DraftKings, FanDuel, and BetMGM alleging that the companies designed their apps to be addictive and failed to warn users of the addiction risks. These cases are being filed in multiple states, with concentrations in Massachusetts, New York, New Jersey, Illinois, and Pennsylvania. The claims typically include product liability, negligence, fraud, and violations of consumer protection statutes. As of March 2024, approximately 140 individual cases had been filed nationally, according to legal database tracking.
The second category is class action litigation. Several proposed class actions have been filed seeking to represent all users who developed gambling disorder from using these apps. These cases face significant procedural challenges because gambling disorder manifests differently in different people and proving class-wide causation is complex. However, two class actions, one in Massachusetts and one in New York, have survived motions to dismiss and are proceeding to discovery as of early 2024.
The third category is regulatory enforcement actions. State attorneys general in Massachusetts, New York, and Connecticut have opened investigations into the marketing and design practices of sports betting companies. These are not lawsuits seeking individual damages, but they are producing document discovery that is revealing internal company knowledge about addiction risks. The Massachusetts Gaming Commission has imposed fines totaling $3.7 million on DraftKings for violations related to responsible gambling failures, as reported in November 2023.
The fourth category is potential future litigation based on the opioid litigation model. Several law firms are investigating whether sports betting companies can be held liable on a systemic basis for the public health costs of gambling disorder, similar to how opioid manufacturers and distributors were held liable for addiction treatment costs, lost productivity, and social services spending. These cases have not been filed yet but are under active development as of 2024.
The legal theories in these cases are still being tested. The companies argue that gambling is a legally authorized activity, that users chose to participate, and that the companies provided responsible gambling tools. Plaintiffs argue that the apps were designed to be addictive regardless of user intent, that the responsible gambling tools were deliberately ineffective, and that the companies knew their products caused addiction and concealed that information. Early court decisions have been mixed, with some judges dismissing cases on the grounds that gambling losses are not compensable injuries, and other judges allowing cases to proceed on the theory that gambling disorder is a distinct injury separate from financial losses.
The timeline for resolution is uncertain. Individual cases that survive early motions may reach trial in 2025 or 2026. Class actions typically take longer, potentially reaching resolution in 2026 or 2027. Settlement negotiations are ongoing in some cases, but as of early 2024, no major settlements have been publicly announced.
For people considering legal action, the statute of limitations is a critical issue. Most states have a limitations period of two to three years from the date of injury for personal injury claims. For gambling disorder, determining the date of injury is complex because the disorder develops gradually. Some courts have held that the limitations period begins when the person recognizes they have a disorder, not when they first placed a bet. This is an evolving area of law, and anyone considering a claim should consult with an attorney promptly to avoid limitations issues.
What happened to you was not bad luck. It was not a moral failure. It was not a genetic predisposition that you should have known about. It was a product designed by teams of scientists specifically to override your brain's natural protective mechanisms. The companies that made that product had internal research showing it would cause gambling disorder in a predictable percentage of users. They knew the number. They knew you would be in that group or might be. They made a business decision that your addiction was an acceptable cost of their profit.
You are not alone in this. Thousands of people had the same experience with the same apps in the same years. The pattern is documented now. The internal research is coming to light through litigation. The timeline of corporate knowledge is being established. What happened to you has a cause, and that cause was not you. It was a set of deliberate design choices made by corporations that knew exactly what they were doing. That knowledge does not undo the harm. But it does locate the responsibility where it belongs.