Problem gambling has reached a critical stage as evidenced by a study by George et al Reference George, Jaisoorya, Nair, Rani, Menon and Madhavan ¹ showing the prevalence and correlates of problem gambling among 5580 randomly selected college students in South India. The researchers found that 38% of those who gambled were problem gamblers. Problem gambling in general, and its more severe counterpart pathological gambling, is universal. An inescapable conclusion from the study of George et al is that problem gambling is similar whether it occurs in South India or North America, and presumably other parts of the world.

The study of George et al shows that problem gambling tends to primarily affect men, those with substance misuse who are psychologically distressed, and is associated with suicidality. In North America, among college students gambling often takes the form of sports betting or internet gambling, though in this survey the lottery was the most popular gambling activity. The consequences of problem gambling are universal as well: depression, addiction, domestic violence, and bankruptcy. Beyond the individual, gambling and its consequences have an enormous – and adverse – impact on the economy, pegged at $54 billion in the United States.Reference Yau and Potenza ² For problem gambling and pathological gambling to exist, gambling opportunities must be readily available. Even when they are not, internet gambling is available 24/7, except perhaps in countries that restrict internet access.

What happens to people with pathological gambling over time? The Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) ³ promotes the idea that the disorder is chronic and progressive and proceeds through multiple stages. In fact, this may not be true. Our own group (unpublished data) recently showed that pathological gambling age at onset is bimodal with women having a later onset and that disorder intensity diminishes over time, a finding consonant with recent reviews.Reference Black, Coryell, Crowe, Shaw, McCormick and Allen ⁴ People with pathological gambling are not sentenced to a dire outcome, and some improve spontaneously without treatment. These findings prompt another question: can treatment accelerate improvement in pathological gambling? This has never been clear nor has there been any consensus on what constitutes treatment. Treatments include self-exclusion programmes, 12-step programmes such as Gamblers Anonymous, individual or group psychotherapy emphasising cognitive–behavioural therapy and motivational interviewing, and, at least for a small number of patients, psychotropic medication.Reference Petry and Blanco ^{5 ,} Reference McIntosh, Crino and O'Neill ⁶ While many of these treatments are routinely recommended, and many people appear to benefit from them, they are not widespread other than perhaps Gamblers Anonymous chapters.

Why are there such large knowledge gaps in the pathological gambling literature? While traditional addictions have received intensive study, behavioural addictions including pathological gambling have generally been ignored.Reference Yau and Potenza ² The fact that pathological gambling (now renamed gambling disorder) has been moved to the chapter on addictions in DSM-5 may help reinvigorate research. In the United States, the National Institutes of Health (NIH) has been the traditional funder of research. Unfortunately, the NIH has shown little interest in funding gambling research since a brief surge in funding in the early 2000s. Thus, studies on prevalence, risk factors, course, and treatment are ignored and funding has been limited. On the contrary, Canada provides governmental support for gambling research and sees this as a priority. This has led to a vibrant research environment and diverse projects investigating every relevant aspect of addictive gambling. Perhaps the research of George et al Reference George, Jaisoorya, Nair, Rani, Menon and Madhavan ¹ will help alert funding agencies that addictive gambling, as a worldwide scourge, merits greater attention.