Behavioural Addictions: Types, Signs, and Treatment Options

Behavioural addictions are conditions in which a person becomes compulsively dependent on an activity or behaviour, such as gambling, gaming, or sex, rather than a substance. According to the NHS, addiction is defined as not having control over doing, taking, or using something to the point where it could be harmful. Behavioural addictions meet that definition. They activate the same reward pathways in the brain as alcohol and drugs, they respond to the same evidence-based treatments, and they cause the same disruption to relationships, work, and health.

This page covers what behavioural addictions are, how they work, how to recognise them, and what treatment involves. It links out to dedicated pages for each of the seven types Sierra Recovery treats.

What Is a Behavioural Addiction?

The term “behavioural addiction” describes a compulsive pattern of engaging in a behaviour despite repeated negative consequences, and a persistent inability to control or stop it. The behaviour itself, not a chemical substance, becomes the source of the compulsion.

Colloquially, people describe themselves as “addicted to” coffee, exercise, or box sets. A clinical behavioural addiction is something different. The diagnostic markers are shared with substance use disorders: loss of control over the behaviour, preoccupation with it, continuation despite significant harm, failed attempts to cut down, and a sense that everyday life is shaped around the behaviour rather than the other way around.

Diagnostically, not all behavioural addictions have the same standing. The WHO’s ICD-11 classification system formally recognises gambling disorder and gaming disorder as disorders due to addictive behaviours, alongside substance use disorders. Compulsive Sexual Behaviour Disorder (CSBD) is formally recognised in ICD-11 as an impulse control disorder. Other patterns, including problematic internet use, shopping addiction, and social media addiction, are clinically recognised and treated, though their formal diagnostic criteria continue to evolve in research.

What they have in common is more important than the distinctions: all involve a loss of voluntary control over a behaviour that is causing harm.

How Behavioural Addictions Affect the Brain

The neuroscience here is less counter-intuitive than it might appear. The same brain circuits involved in substance addiction are active in behavioural addictions, because the circuit being engaged is the brain’s reward system, not the substance itself.

The mesolimbic dopamine pathway, sometimes described as the brain’s reward highway, runs from the ventral tegmental area to the nucleus accumbens and prefrontal cortex. Research published in 2025 in a peer-reviewed review of the reward circuit in behavioural addiction confirms that this pathway serves as “the ultimate common pathway for reinforcement and reward” in both substance and behavioural addictions. Engaging in a compulsive behaviour, whether gambling, gaming, or sexual activity, triggers dopamine release in this pathway. The brain registers the activity as rewarding and, over time, adapts.

That adaptation is the problem. As tolerance develops, the person needs more of the behaviour to achieve the same effect. When the behaviour is unavailable, they may experience withdrawal in the form of irritability, anxiety, or restlessness. The prefrontal cortex, the part of the brain responsible for regulating impulses and considering long-term consequences, becomes less effective at inhibiting impulsive responses.

This is not a moral failing. It is a change in brain function, and it is one reason that willpower alone is rarely sufficient to address a behavioural addiction.

How Behavioural Addictions Differ From Substance Addictions

The shared neuroscience means the two categories have more in common than they differ. But there are real practical distinctions, and understanding them matters for treatment.

The practical challenge unique to behavioural addictions is accessibility. Someone with alcohol dependence can, with support, remove alcohol from their home. Someone with an internet addiction, a social media compulsion, or a shopping addiction cannot simply stop using the internet. Treatment has to build the capacity to use those things differently, which is a harder clinical problem than abstinence from a substance.

The Seven Types Sierra Treats

Sierra Recovery treats the following seven types of behavioural addiction as part of its residential programme. Each has a dedicated service page with clinical detail.

Gambling addiction: Gambling disorder is the most formally studied behavioural addiction and the one with the strongest body of clinical evidence. The compulsive urge to gamble persists despite mounting financial loss, damaged relationships, and attempts to stop. Online gambling has made the behaviour significantly more accessible, and the 24-hour availability of digital betting platforms has changed the risk profile for many people. Signs include preoccupation with gambling, chasing losses, hiding gambling from family, and borrowing money to fund it.

Gaming addiction: Gaming disorder was formally recognised in the WHO’s ICD-11 in 2022, defined by impaired control over gaming, increasing priority given to gaming over other activities, and continuation despite negative consequences. It tends to present differently from gambling addiction: the financial harm may be absent, but the withdrawal from relationships, work, and physical health can be severe. The immersive nature of online gaming, and the social reinforcement built into multiplayer environments, makes it particularly difficult to interrupt.

Sex addiction: Compulsive Sexual Behaviour Disorder (CSBD) is recognised in ICD-11 as an impulse control disorder characterised by a persistent pattern of failure to control intense, repetitive sexual impulses resulting in repetitive sexual behaviour, causing marked distress or functional impairment. It is important to note that a high level of sexual interest is not the same as CSBD. The defining feature is the loss of control and the distress or harm that results.

Pornography addiction: Compulsive use of pornography is a distinct clinical presentation, separate from sex addiction, though they can co-occur. The easy availability of online pornography has made it one of the more common behavioural concerns presenting to residential services. Signs include using pornography in increasing amounts over time, finding real relationships less satisfying, using it to manage difficult emotions, and experiencing significant guilt or shame without being able to stop.

Shopping addiction: Compulsive buying disorder involves repeated, uncontrolled purchasing driven by emotional rather than practical need. The purchase itself provides a temporary mood lift, followed by guilt, financial stress, and often secrecy. Online shopping has significantly lowered the barrier to compulsive purchasing, and the behaviour can escalate rapidly with debt as the primary consequence.

Social media addiction: Problematic social media use follows a well-documented pattern of tolerance, withdrawal, and relapse. A longitudinal study on social media addiction symptoms found that the pattern includes salience (preoccupation with use), mood modification (using it to feel better or escape), tolerance, withdrawal symptoms including irritability and frustration when access is reduced, and conflict with other life domains. What makes it clinically significant is not the use itself but the extent to which the person has lost the ability to choose when and how they engage.

Internet addiction: Compulsive internet use is a broader category that can overlap with gaming and social media addiction, but which also includes compulsive information-seeking, online gaming in general, and non-social screen use. The defining feature is the same: loss of control, preoccupation, and continuation despite harm to sleep, relationships, work, or physical health.

Common Warning Signs Across All Behavioural Addictions

Despite their differences, all behavioural addictions share a set of recognisable warning signs. If several of the following feel familiar, they are worth taking seriously.

• Preoccupation: thinking about the behaviour frequently, planning for it when not engaged in it, or finding it difficult to focus on other things.
• Mood modification: using the behaviour primarily to escape uncomfortable emotions, relieve boredom, or cope with stress rather than for enjoyment.
• Tolerance: needing to engage in the behaviour for longer periods, with more intensity, or more frequently to achieve the same effect.
• Withdrawal: feeling irritable, anxious, or restless when unable to engage; resuming the behaviour to relieve those feelings.
• Conflict: the behaviour is causing problems in relationships, at work, or with physical health, and continuing anyway.
• Failed attempts to cut down: repeated genuine efforts to reduce or stop, without lasting success.
• Secrecy: hiding the extent of the behaviour from family, friends, or colleagues.

None of these signs in isolation is diagnostic. It is the pattern, the persistence, and the impact on daily life that matter. A person who plays video games for several hours at the weekend is not, by that fact alone, experiencing gaming disorder. A person who has tried repeatedly to stop, who is neglecting relationships or work, and who feels their day is organised around gaming may be.

Who Is at Risk?

Behavioural addictions can affect anyone, but some circumstances increase the likelihood. Understanding risk factors is not about assigning blame. It is about making sense of why someone, at a particular point in their life, became vulnerable to losing control over a behaviour.

Mental health conditions are among the most consistent risk factors. Anxiety and depression are frequently present alongside behavioural addictions, sometimes as a cause (using the behaviour to self-medicate), sometimes as a consequence (the shame and financial or relational damage the addiction creates), and sometimes as both. Post-traumatic stress and a history of adverse childhood experiences are also significantly associated with behavioural addiction presentations in clinical settings.

Other factors include social isolation (which increases the appeal of online environments or activities that provide a sense of connection or reward), high-stress occupational settings, a genetic predisposition toward novelty-seeking or impulsivity, and early exposure to gambling or other highly reinforcing behaviours. The NHS notes that genetic factors, environmental influences, and emotional pressures all play a role in how addiction develops.

Recognising risk factors can also point toward the treatment approach that will be most helpful: addressing underlying trauma with EMDR, for example, or working on emotional regulation with DBT where mood-driven behaviour patterns are central to the addiction.

How Behavioural Addictions Are Treated

Behavioural addictions are treatable. The evidence base is strongest for gambling disorder, but the same therapeutic principles apply across the spectrum.

Cognitive Behavioural Therapy (CBT) is the most extensively studied treatment for behavioural addictions. NICE guidance NG248 on gambling-related harms concludes that CBT was both effective and cost-effective for treating gambling that harms. In the context of behavioural addiction, CBT works by identifying and challenging the thought patterns and beliefs that maintain the behaviour, developing strategies to interrupt the cycle, and building alternative coping skills for the triggers that drive it.

Dialectical Behaviour Therapy (DBT) is particularly well-suited to presentations where emotional dysregulation is a central driver. DBT builds tolerance for distress, skills for managing intense emotions, and a framework for making different choices in the moment of urge.

Motivational Interviewing (MI) helps people who are ambivalent about treatment to clarify their own reasons for change. NICE notes its value in improving commitment and encouraging participation in people who are not yet certain.

EMDR is increasingly used in the treatment of addictions where trauma or adverse experiences are identified as underlying drivers. Addressing the trauma directly, rather than managing the behaviour that developed around it, can reduce the emotional charge that drives compulsive engagement.

Group therapy is an important component of most effective behavioural addiction treatment. The experience of recognising that others have had the same experience, and of being understood without judgment, has specific therapeutic value that individual therapy does not replicate.

For some people, residential treatment provides the structure and distance from triggers that is needed to begin working on the underlying patterns. This is particularly relevant where the behaviour is deeply embedded in daily life and where previous outpatient attempts have not held.

What Treatment at Sierra Recovery Looks Like

Sierra Recovery is a small private residential clinic in the mountains of inland Andalucía, Spain, backed by PROMIS Clinics in the UK. We treat adults with behavioural addictions in the same residential setting as those with substance addictions, because the clinical approach draws on the same evidence base.

The programme is individually built. Before treatment begins, the clinical team assesses which addiction or addictions are present, what is driving the behaviour, and whether co-occurring mental health conditions, such as anxiety, depression, or trauma, need to be addressed alongside the addiction. For many people with behavioural addictions, the addiction and the mental health condition are closely linked, and addressing them together produces better outcomes than treating either in isolation.

Therapy draws on CBT, DBT, EMDR, and motivational interviewing, alongside group therapy of up to five sessions per day. Three individual therapy sessions per week allow for deeper individual work. Our residential treatment programme takes place in a small group setting, which means the work is genuinely individualised rather than conducted through a generic protocol.

The team is English-speaking throughout, which matters for UK clients who need to do intensive psychological work in their first language. Aftercare, including in-person sessions through PROMIS UK’s London touchpoint, continues after you leave Spain.

If you are wondering whether residential treatment is the right level of care for a behavioural addiction, the answer generally comes down to how much the addiction has disrupted your life and whether previous attempts to address it independently or through outpatient support have been sustained.

Have questions about treating a behavioural addiction? Speak to our team in confidence. We treat gambling, gaming, sex, pornography, shopping, social media, and internet addiction in a small residential setting in Andalucía. Our English-speaking clinical team, backed by PROMIS Clinics, can talk you through what treatment involves and whether it might be right for you. Get in touch UK: +44 1202 653136 | Spain: +34 666 777 888 Confidential. English-speaking team. No obligation.

Sources

1. NHS. “Addiction: what is it?” https://www.nhs.uk/live-well/addiction-support/addiction-what-is-it/
2. Billieux J et al. “Behavioral addictions in the ICD-11: An important debate.” PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC10562818/
3. Zhang Y et al. “Neurotransmitters crosstalk and regulation in the reward circuit of subjects with behavioral addiction.” PMC, 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC11773674/
4. NICE. “Gambling-related harms: identification, assessment and management (NG248).” https://www.nice.org.uk/guidance/ng248/chapter/Rationale-and-impact
5. Kraus SW et al. “Compulsive sexual behaviour disorder in the ICD-11.” World Psychiatry / PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC5775124/
6. Wartberg L et al. “Conceptualising social media addiction: a longitudinal network analysis.” PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC10339588/