ADHD and Addiction: Why the Risk Is Higher, and Why It Isn’t Destiny

TL;DR

• ADHD is a well-established risk factor for substance use problems and some behavioural addictions. Long-term studies show children with ADHD are roughly 1.5 to 3 times more likely to develop a substance use disorder later, depending on the substance. That is a real increase, not a certainty.
• Close to one in four people in addiction treatment meet criteria for ADHD, which is why ADHD should be screened for whenever someone seeks help for substance use.
• The main drivers are impulsivity, a stronger pull toward immediate reward, using substances to quiet restlessness or emotional overwhelm, shared genetic vulnerability, and life stress that piles up around untreated ADHD.
• We call the core pattern the relief shortcut: when ordinary rewards feel faint and distress feels loud, anything that changes how you feel fast gets learned quickly.
• Prescribed ADHD medication does not appear to increase addiction risk. Some large studies link treatment periods with fewer substance-related crises, though the evidence on long-term prevention is mixed.
• The most protective steps are an accurate ADHD assessment, honest conversations with clinicians about substance use, and treatment that addresses ADHD and addiction together.

People with ADHD are often told, in one form or another, that they “just need more willpower.” When substance use or compulsive gambling enters the picture, that message gets louder and more shaming. It is also wrong about how the problem works.

ADHD does raise the risk of addiction. But the reasons are understandable, the risk varies enormously from person to person, and there is a great deal that can be done about it. This article explains what the research actually shows, where popular claims overstate it, and what helps.

Are people with ADHD more likely to develop an addiction?

Yes, on average, but the increase is moderate and far from inevitable. The strongest evidence comes from studies that followed children with and without ADHD into adolescence and adulthood. A meta-analysis led by Steve Lee at UCLA, pooling 27 such studies, found that children with ADHD were significantly more likely to later develop nicotine, alcohol, cannabis, cocaine, and other drug use disorders. The odds were roughly 1.5 to 3 times higher depending on the substance, with nicotine dependence showing the strongest link.

Two details from that research matter for how we talk about this:

• Children with ADHD were no more likely than their peers to try alcohol. The difference showed up later, in who went on to develop problems. Exposure is not the dividing line; what happens after exposure is.
• Many children with ADHD in these studies never developed a substance problem at all. Group averages describe risk, not anyone’s future.

You may have seen claims that people with ADHD are “up to seven times” more likely to become addicted. That figure does not match the long-term studies above. The closest source we could identify is a 2020 genetic study by María Soler Artigas and colleagues, which estimated that genetic liability to ADHD was associated with roughly eight-fold odds of ever using cannabis. That estimate came with a very wide margin of uncertainty, and it measured lifetime use rather than addiction. It is an interesting finding about causation, not a measure of addiction risk.

The picture from the other direction is just as important. When Katelijne van Emmerik-van Oortmerssen and colleagues pooled data from more than 6,600 people in substance use treatment, they found that about 23 percent met diagnostic criteria for ADHD. That is several times the rate in the general adult population, and it is the main reason addiction services increasingly screen for ADHD.

ADHD is also linked with problem gambling, though more modestly. A 2019 meta-analysis by Jennifer Theule and colleagues found a small but consistent association between ADHD symptoms and gambling severity.

What is ADHD, beyond trouble paying attention?

ADHD is a neurodevelopmental condition that affects how the brain regulates attention, activity, impulses, motivation, and emotion. It often continues into adulthood and can touch school, work, sleep, money, relationships, and daily routines.

It is not a lack of intelligence, effort, or character. It is a difference in self-regulation, and that difference matters most in exactly the moments when addiction risk is highest: when an urge shows up before there has been time to think.

Two features of ADHD are especially relevant here.

Impulsivity means the gap between urge and action is shorter. The idea to have another drink, place one more bet, or say yes to whatever is being passed around can become action before there has been time to pause and weigh it up.

Difficulty waiting for rewards means a small reward now often feels more compelling than a larger one later. The calm of a drink tonight competes with the benefit of a clear head tomorrow, and for many people with ADHD, tonight wins more often than they would like. This preference for immediate reward is one of the most consistently described contributors to addiction risk in ADHD.

How does the ADHD brain process reward differently?

One leading explanation is that the brain’s reward system responds less strongly to ordinary rewards in some people with ADHD, so fast, intense rewards stand out more. Dopamine is central to this system. It drives motivation, anticipation, and learning which actions are worth repeating.

In a frequently cited 2009 brain-imaging study, Nora Volkow and colleagues found lower levels of key dopamine markers in the reward pathway of adults with ADHD who had never taken medication, and those lower levels were linked with more inattention. A follow-up analysis connected the same markers to lower motivation scores. The study was small (53 adults with ADHD and 44 without), and dopamine is not the whole story, but it fits what many clients describe: everyday satisfactions feel thin, and anything strong cuts through.

This is where the relief shortcut comes in. The substance or behaviour itself varies: alcohol, nicotine, cannabis, stimulant drugs, gambling, gaming, compulsive scrolling or shopping. What they share is speed. Each one changes how a person feels within minutes, and a brain that is under-rewarded and over-stimulated can learn fast shortcuts very efficiently.

Is substance use a form of “self-medication” for ADHD?

It can feel like self-medication, and that is exactly what makes it risky. Many people with ADHD, diagnosed or not, use substances less to feel high than to feel normal. In practice, clients describe reaching for something to manage:

• Racing thoughts that won’t settle at night
• Physical restlessness or an inner sense of being “driven”
• Social anxiety and the effort of masking
• Emotional floods that come on fast
• Chronic boredom and understimulation
• Trouble starting or staying with tasks

If cannabis is part of the pattern, our article on cannabis and ADHD looks more closely at why short-term relief can become costly over time.

The relief is real, at first. The problem is what follows. Tolerance builds, so more is needed for the same effect. Withdrawal and rebound can make the original symptoms worse. Sleep, mood, and concentration decline, which increases the need for relief. In the short term a substance can quiet a busy head; over time, however, the pattern can make self-regulation harder rather than easier.

Undiagnosed ADHD makes this cycle harder to see. Someone who has always felt different, scattered, or overwhelmed, without knowing why, may conclude that a drink or a joint is simply what works for them. An accurate diagnosis gives them a better explanation and better options.

Why can addiction escalate faster with ADHD?

The accelerator and the brake

A helpful way to picture this is a car with a strong accelerator and a brake that is slow to respond. The accelerator is the drive toward stimulation, novelty, and immediate reward. The brake is the ability to pause, reflect, plan, and stop. In ADHD, the accelerator often presses harder and the brake engages a beat later.

This is a simplification. People with ADHD have self-control; it is just less reliable under pressure, fatigue, boredom, or strong emotion, which are exactly the conditions when urges peak.

How the loop gets learned

Addictive patterns tend to build in a predictable sequence:

1. A substance or behaviour produces relief, focus, calm, excitement, or pleasure.
2. The brain files it as a fast fix for discomfort or boredom.
3. The urge returns more easily in similar situations: the same time of day, the same feeling, the same people.
4. Over time the behaviour becomes more automatic and harder to interrupt.

This loop is human, not specific to ADHD. It simply runs faster when everyday rewards feel weak and slow, and the shortcut feels strong and immediate.

Earlier start, harder course

Clinicians who work in addiction services often see that people with ADHD started using earlier, which gives habits more years to entrench. Research also links ADHD with a more severe course of substance use and poorer treatment outcomes when ADHD goes unrecognized. Early use is a reason for attention, not alarm. Relationships, treatment, skills, and environment all change the trajectory.

Do genetics link ADHD and addiction?

Partly, yes. ADHD is highly heritable, and large genetic studies find meaningful overlap between the genes associated with ADHD and those associated with cannabis use disorder, problematic tobacco use, problematic alcohol use, and opioid use disorder. A 2024 study led by Trine Tollerup Nielsen and Ditte Demontis identified dozens of genetic regions shared between ADHD and cannabis use disorder, including a dopamine receptor gene.

Genetic studies also suggest the influence can run in both directions: liability to ADHD appears to increase the likelihood of smoking and cannabis use, while substance-related genetic liability may also overlap with ADHD risk.

Genes shape risk; they do not write anyone’s story. Most people carrying these genetic tendencies never develop an addiction.

What life factors add to the risk?

Biology interacts with circumstance. Addiction risk in ADHD typically builds from several layers at once:

• Years of academic struggle, correction, and criticism
• Difficulties holding down work, and the financial stress that follows
• Family stress and conflict
• Peer groups where substances are easy to access
• Trauma or chronic stress
• Co-occurring anxiety, depression, or sleep problems
• Limited access to assessment and treatment, which in Saskatchewan often means long waits and long drives

One factor deserves special mention. Research by Jean-Baptiste Pingault and colleagues found that much of the link between childhood ADHD and later substance problems was explained by co-occurring oppositional and conduct difficulties, rather than inattention alone. Lee’s meta-analysis reached a similar caution. In practical terms, children and teens whose ADHD comes with significant behaviour and conflict difficulties are a group to support early and well.

When ADHD and another mental-health condition occur together, the pull toward immediate relief is understandably stronger. That is why integrated assessment, looking at ADHD, mood, anxiety, trauma, and substance use together, works better than treating each in isolation.

Does ADHD medication increase or reduce addiction risk?

Prescribed ADHD medication does not appear to increase the risk of addiction, and several large studies link treatment periods with fewer substance-related problems. This is one of the most common worries families bring to us, so it is worth being precise.

First, prescribed medication taken as directed under clinical supervision is different from non-medical use of stimulants.

What the research shows:

• A 2014 Swedish national registry study led by Zheng Chang found that people with ADHD had lower rates of substance-related problems among those prescribed stimulant medication.
• A 2017 study of nearly 3 million people with ADHD, led by Patrick Quinn with Swedish co-authors and drawing on US insurance claims, compared the same individuals during medicated and unmedicated months. Emergency visits related to substance use were 35 percent lower in men and 31 percent lower in women during medicated months. Two years later, the reduction was smaller: 19 percent in men and 14 percent in women.
• However, a 2013 meta-analysis led by Kathryn Humphreys, pooling 15 long-term studies of children treated with stimulants, found that childhood stimulant treatment neither increased nor decreased later substance use disorders.

The honest summary: medication is not a cause of addiction, and treating ADHD symptoms appears to reduce substance-related crises while treatment is active. Whether childhood treatment prevents addiction in the long run is less settled.

Medication decisions should always be individualized with a qualified prescriber, especially when there is current or past substance use. Medication is also only one part of good care. It works best alongside psychoeducation, therapy, sleep support, structure, and treatment for co-occurring conditions.

How can people with ADHD lower their risk?

Get an accurate assessment

Persistent difficulties with attention, impulsivity, restlessness, emotional regulation, or substance use are reasons to seek an ADHD assessment. Understanding the cause replaces shame and guesswork with a plan. Saskatchewan residents can access assessment and therapy options by telehealth, which can reduce the distance barrier for northern and rural communities.

Build better sources of stimulation and structure

The aim is to reduce the number of moments when the relief shortcut is the only option on the table:

• Move daily. Physical activity is one of the most reliable ways to raise arousal and improve mood without a crash.
• Protect sleep and regular meals. Tired, hungry brains reach for shortcuts.
• Use external planning systems so fewer decisions are made in the moment.
• Add friction to high-risk access. Delete gambling apps, block betting sites, don’t keep alcohol in the house during difficult stretches.
• Set financial safeguards such as spending limits, separate accounts, or a trusted person who reviews large transactions.
• Invest in interest-driven activities, social connection, and meaningful work. These are slower rewards, but they are durable.
• Practise tolerating boredom and discomfort in small doses. This is a learnable skill, and dialectical behaviour therapy (DBT) teaches practical distress-tolerance and emotion-regulation skills.

None of these is a cure. Each one shrinks the window in which an urge becomes an action.

Seek treatment that addresses both

ADHD and addiction are best treated together. Evidence-informed options include cognitive behavioural therapy adapted for ADHD, DBT skills for distress tolerance and emotion regulation, motivational interviewing, relapse-prevention planning, and treatment for co-occurring anxiety, depression, or trauma.

Be open with every clinician you see. Tell your addiction counsellor that you have ADHD, or suspect it. Tell your ADHD prescriber about your substance use. Each piece of information changes what good treatment looks like.

Warning signs worth taking seriously

Consider reaching out for support if you notice:

• Using more, or more often, than you intend
• Trying to cut back and not managing to
• Using mainly to cope with emotions, restlessness, or sleep
• Hiding how much you use or spend
• Money, work, or relationship consequences
• Continuing despite harm you can clearly see

Where can you get help in Saskatchewan?

• HealthLine 811 offers 24/7 mental health and addictions advice, education, crisis support, and connections to community resources.
• 988 Suicide Crisis Helpline is available by call or text, 24/7, if you or someone you know is in crisis.
• Hope for Wellness Helpline (1-855-242-3310) offers 24/7 support for Indigenous people across Canada. English and French are available, with telephone counselling in Cree, Ojibway, and Inuktitut available on request depending on counsellor availability.
• CADDAC (Centre for ADHD Awareness, Canada) runs a free virtual peer-led support group for adults with ADHD and substance use concerns.
• ADHD-informed therapy by telehealth is available province-wide through STG Health Services, including for eligible clients using Non-Insured Health Benefits (NIHB).

If there is immediate danger, call 911.

Frequently asked questions

Does having ADHD mean I will become addicted?

No. ADHD raises the average risk of substance use problems, roughly 1.5 to 3 times depending on the substance, but most people with ADHD never develop an addiction. Treatment, relationships, skills, and environment all shape the outcome.

Why do people with ADHD use alcohol or cannabis?

Often to quiet restlessness, racing thoughts, anxiety, or emotional overwhelm, not only for pleasure. That relief is real in the short term, but tolerance and rebound tend to make ADHD symptoms worse over time.

Can ADHD medication cause addiction?

Prescribed ADHD medication taken as directed does not appear to increase addiction risk. Large studies link medicated periods with fewer substance-related emergencies, though evidence on long-term prevention is mixed. Discuss any history of substance use with your prescriber.

Should addiction treatment include ADHD screening?

Yes. About one in four people in addiction treatment meet criteria for ADHD. Unrecognized ADHD is associated with a harder course, so screening and integrated treatment can improve treatment planning.

Is gambling or gaming addiction linked to ADHD?

Yes, but more modestly than substance use. Research shows a small, consistent association between ADHD symptoms and problem gambling, likely driven in part by the same pull toward fast, unpredictable rewards.

Risk is not destiny

ADHD can make addiction more likely because of differences in reward processing, impulsivity, stimulation-seeking, genetics, and the stress that often surrounds untreated ADHD. But a higher risk is not a verdict.

The relief shortcut is learned, and what is learned can be changed. Accurate diagnosis, thoughtful treatment, practical safeguards, and people who understand you all make it easier to manage ADHD on your own terms, without depending on substances or behaviours that cost more than they give.

This article is for general educational purposes and is not a substitute for individual medical or psychological advice. Decisions about medication, substance use treatment, or diagnosis should be made with a qualified health professional who knows your history. If you are in crisis, call or text 988 or call 911.

References

Chang, Z., Lichtenstein, P., Halldner, L., D’Onofrio, B., Serlachius, E., Fazel, S., Långström, N., & Larsson, H. (2014). Stimulant ADHD medication and risk for substance abuse. Journal of Child Psychology and Psychiatry, 55(8), 878–885. https://doi.org/10.1111/jcpp.12164

Humphreys, K. L., Eng, T., & Lee, S. S. (2013). Stimulant medication and substance use outcomes: A meta-analysis. JAMA Psychiatry, 70(7), 740–749. https://doi.org/10.1001/jamapsychiatry.2013.1273

Lee, S. S., Humphreys, K. L., Flory, K., Liu, R., & Glass, K. (2011). Prospective association of childhood attention-deficit/hyperactivity disorder (ADHD) and substance use and abuse/dependence: A meta-analytic review. Clinical Psychology Review, 31(3), 328–341. https://doi.org/10.1016/j.cpr.2011.01.006

Nielsen, T. T., Duan, J., Levey, D. F., Walters, G. B., Johnson, E. C., et al., & Demontis, D. (2024). Shared genetics of ADHD, cannabis use disorder and cannabis use and prediction of cannabis use disorder in ADHD. Nature Mental Health, 2, 1071–1083. https://doi.org/10.1038/s44220-024-00277-3

Pingault, J.-B., Côté, S. M., Galéra, C., Genolini, C., Falissard, B., Vitaro, F., & Tremblay, R. E. (2013). Childhood trajectories of inattention, hyperactivity and oppositional behaviors and prediction of substance abuse/dependence: A 15-year longitudinal population-based study. Molecular Psychiatry, 18(7), 806–812. https://doi.org/10.1038/mp.2012.87

Quinn, P. D., Chang, Z., Hur, K., Gibbons, R. D., Lahey, B. B., Rickert, M. E., Sjölander, A., Lichtenstein, P., Larsson, H., & D’Onofrio, B. M. (2017). ADHD medication and substance-related problems. American Journal of Psychiatry, 174(9), 877–885. https://doi.org/10.1176/appi.ajp.2017.16060686

Soler Artigas, M., Sánchez-Mora, C., Rovira, P., Richarte, V., Garcia-Martínez, I., Pagerols, M., et al., & Ribasés, M. (2020). Attention-deficit/hyperactivity disorder and lifetime cannabis use: Genetic overlap and causality. Molecular Psychiatry, 25(10), 2493–2503. https://doi.org/10.1038/s41380-018-0339-3

Theule, J., Hurl, K. E., Cheung, K., Ward, M., & Henrikson, B. (2019). Exploring the relationships between problem gambling and ADHD: A meta-analysis. Journal of Attention Disorders, 23(12), 1427–1437. https://doi.org/10.1177/1087054715626512

van Emmerik-van Oortmerssen, K., van de Glind, G., van den Brink, W., Smit, F., Crunelle, C. L., Swets, M., & Schoevers, R. A. (2012). Prevalence of attention-deficit hyperactivity disorder in substance use disorder patients: A meta-analysis and meta-regression analysis. Drug and Alcohol Dependence, 122(1–2), 11–19. https://doi.org/10.1016/j.drugalcdep.2011.12.007

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Volkow, N. D., Wang, G.-J., Newcorn, J. H., Kollins, S. H., Wigal, T. L., Telang, F., et al., & Swanson, J. M. (2011). Motivation deficit in ADHD is associated with dysfunction of the dopamine reward pathway. Molecular Psychiatry, 16(11), 1147–1154. https://doi.org/10.1038/mp.2010.97