Why Sports Gambling Addiction Falls Under the DSM-5’s Only Behavioral Addiction

You might hear people say they are “addicted” to coffee, porn, or scrolling sports odds. The word gets used loosely. But gambling feels different from the inside.

The moment before placing a bet can carry a charge of anticipation. Heart rate rises. Attention narrows. The possibility of reward activates the brain’s dopamine system, the same circuitry involved in substance use disorders. For some people, that surge becomes difficult to resist.

In the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revised (referred to as the DSM-5), only one of those behaviors is formally recognized as an addiction without a substance involved: gambling disorder, the DSM-5 diagnosis that includes sports betting and other gambling behaviors.

Dr. Timothy Fong, co-director of the UCLA Gambling Studies Program, has said that the issue is not gambling itself, but the point at which gambling begins to control a person’s life.

A growing consensus in neuroscience and clinical psychology places gambling disorder alongside opioid and alcohol addiction within the DSM-5 addiction category.

Using the word “addicted” casually is one thing. A diagnosis occurs only when a behavior begins to cause significant impairment.

Why gambling disorder is classified as an addiction

In DSM-4, the diagnosis was called Pathological Gambling and appeared in the impulse-control disorders section. The framing suggested difficulty resisting urges.

DSM-5 changed both the name and the category. The condition became Gambling Disorder and moved into the Substance-Related and Addictive Disorders chapter, alongside opioid and alcohol addiction.

The reclassification reflected the accumulation of clinical and neurobiological evidence. The same neural circuits that reinforce drug use are engaged during gambling. Over time, the brain can begin to treat the possibility of a bet as a powerful reward signal.

A large image-based meta-analysis published in JAMA Psychiatry found disrupted altered activity in the brain’s reward system in both substance use disorders and gambling disorders. Researchers observed differences in the striatum, a region involved in anticipating rewards and learning from wins and losses.

The diagnostic criteria also evolved. The threshold dropped from five criteria to four within a 12-month period. The “illegal acts” criterion was removed, and severity levels were added, allowing clinicians to classify cases as mild, moderate, or severe.

Gambling shifted from an impulse-control framework into the addiction chapter, where it stands as the manual’s only formally recognized behavioral addiction in DSM-5. 

How sports gambling addiction fits under gambling disorder

Sports gambling addiction is not a separate DSM diagnosis. It is one expression of gambling disorder.

The format of the bet does not change the underlying pattern. Whether someone wagers at a casino or through a mobile app, the clinical framework remains the same.

The DSM-5 outlines criteria such as:

• Lying to conceal the extent of gambling
• Jeopardizing relationships, work, or education
• Chasing losses by returning to win back money
• Feeling restless or irritable when trying to cut back
• Repeated unsuccessful efforts to control or stop gambling
• Needing to gamble with increasing amounts of money to feel excitement

A person must meet at least four criteria within a 12-month period for a diagnosis. Sports gambling addiction fits within this structure when the behavior becomes persistent, difficult to control, and disruptive to daily life.

What sports gambling addiction can look like
Sports gambling addiction often begins socially. A few bets during football season. A friendly wager with friends. A sense of excitement is tied to the outcome of a game.

Over time, the pattern may shift:

• Hiding losses from family
• Betting during work hours
• Checking odds throughout the day
• Feeling anxious or irritable before games
• Using credit cards or loans to continue gambling

Certain factors increase vulnerability:

• Impulsivity
• Financial stress
• Trauma exposure
• Depression or anxiety
• Early exposure to gambling
• Personal or family history of substance use disorders

Brain development continues into the mid-20s, especially in areas related to impulse control and long-term planning. Younger adults may face an elevated risk when gambling becomes normalized through apps and advertising.

How sports gambling addiction affects mental health
Financial strain often leads to chronic stress. Secrecy can strain relationships. A loss of control can lead to guilt or shame.

Research links gambling disorder with higher rates of depression, anxiety, and suicidal thoughts. But the impact is not only financial. Over time, gambling can begin to shape mood, attention, and emotional regulation.

In an interview with SciLine, Dr. Timothy Fong described the internal toll this can take: “The thoughts about gambling were not pleasant. They were obsessional. They were compulsive. They were painful to think about gambling so much.”

That internal preoccupation can crowd out other areas of life. Even when someone appears outwardly stable, they may be experiencing sleep disruption, irritability, difficulty concentrating, and persistent anxiety tied to betting outcomes.

The behavior can form a loop:

1. Place a bet for excitement or relief
2. Experience a win and feel rewarded
3. Experience a loss and chase it
4. Feel distress
5. Bet again to cope

Repetition strengthens the cycle. Over time, gambling can shift from recreation to a coping mechanism for managing difficult emotions. Instead of reducing stress, it reinforces it.

Mobile gambling and sports gambling addiction
Online sports betting has changed not just where gambling happens, but how quickly it unfolds. What once required travel to a casino now takes place on a smartphone, often within seconds.

Since the Supreme Court’s 2018 decision allowing states to legalize sports wagering, access has expanded rapidly. Mobile platforms introduced live betting, real-time odds updates, and promotional incentives that reduce hesitation and encourage repeat play. The practical barriers that once separated impulse from action have largely disappeared.

Technology does not cause addiction on its own. Most people who bet will not develop sports gambling addiction. Yet shorter gaps between action and outcome strengthen reinforcement, and continuous access removes natural pause points. For individuals already vulnerable, high-speed, always-available betting environments can increase risk.

Mobile access has compressed the timeline between urge and action, creating conditions in which problematic patterns can take hold more quickly.

Gambling mechanics are also becoming more embedded in everyday life. Platforms like Polymarket and Kalshi turn real-world events into tradable outcomes, while blind box retail models rely on uncertainty and reward anticipation to drive engagement.

As these risk-reward systems become more normalized, the structure of gambling feels increasingly familiar, which can lower psychological barriers for vulnerable individuals. Over time, that normalization can make high-frequency betting feel less exceptional and more routine, even when the psychological risks remain.

Treatment for sports gambling addiction
Treatment for sports gambling addiction focuses on interrupting harmful betting patterns and addressing the factors that sustain them. Therapy, particularly cognitive behavioral therapy, helps people challenge distorted beliefs about odds and control while building skills to manage urges and reduce relapse risk.

For some, treatment also includes support groups or medication to reduce cravings. Although sports betting now happens on a phone, the underlying psychological processes are well understood. Effective, evidence-based care exists, and recovery is possible.

Frequently Asked Questions (FAQs) about sports gambling addiction
 

Is sports gambling addiction officially recognized as a mental disorder?
Yes. It falls under gambling disorder in the DSM-5 and is the only behavioral addiction listed in the Substance-Related and Addictive Disorders chapter.

How is sports gambling addiction different from opioid addiction?
Opioid addiction involves a chemical substance. Sports gambling addiction involves a behavior. Both affect the brain’s reward system and share features such as cravings, tolerance, and continued use despite harm.

Why is pornography addiction not in the DSM-5?
The DSM-5 does not list pornography addiction as a formal diagnosis due to limited consensus and research within that framework. Compulsive sexual behavior is recognized in the ICD-11, which is a different diagnostic system.

Can sports gambling addiction be treated?
Yes. Evidence-based treatments include cognitive-behavioral therapy, motivational interviewing, peer support groups, and, sometimes, medication. Treatment also addresses co-occurring conditions such as depression or anxiety.

Does everyone who bets on sports have an addiction?
No. A diagnosis requires specific criteria, including repeated loss of control and significant impairment or distress over a 12-month period. Casual or recreational betting does not meet those standards.