Addiction and Autism: Understanding the Overlooked Connection

Reviewed by Dr. Richard A. Marasa, MD, MBA — Board-Certified in Addiction Medicine, Emergency Medicine & Internal Medicine

Understanding the Link Between Autism and Addiction

Autism spectrum disorder (ASD) is a neurodevelopmental condition that affects how a person communicates, interacts socially, and processes sensory information. While the connection between autism and substance use disorders has historically received little attention, recent research reveals that people on the autism spectrum may face a significantly elevated risk of developing addiction.

Understanding this connection is essential for families, clinicians, and treatment providers who want to offer more effective, compassionate support to individuals navigating both conditions.

How Common Is Addiction Among People With Autism?

The prevalence of substance use disorders among people on the autism spectrum is higher than many realize:

• Research indicates that roughly 50% of people with autism experience substance abuse or addiction at some point in their lives, suggesting a meaningful link between autism and the development of substance use disorders.
• People on the spectrum may also be more vulnerable to behavioral addictions, including compulsive internet use, gaming, and gambling.
• Approximately 84% of autistic individuals experience some form of anxiety, making it one of the most common co-occurring conditions and a significant contributor to addiction risk.

It is important to note that having autism does not guarantee the development of addiction. However, the combination of social difficulties, sensory processing differences, and high rates of co-occurring mental health conditions creates an environment where substance use can become a coping mechanism.

Factors That Contribute to Addiction Risk in Autism

Several interrelated factors help explain why people on the autism spectrum face elevated addiction risk.

Co-Occurring Mental Health Conditions

People with autism frequently experience co-occurring psychiatric conditions that independently increase addiction vulnerability:

• Anxiety disorders — present in an estimated 84% of autistic individuals
• Depression — commonly co-occurs with autism and can drive self-medication through substance use
• Obsessive-compulsive disorder (OCD) — appears at high rates in the autism community
• Attention deficit hyperactivity disorder (ADHD) — significantly compounds addiction risk when present alongside autism

Research has found that autistic adults who engage in hazardous drinking tend to score higher on measures of depression, generalized anxiety, and social anxiety compared to those who drink at lower levels or abstain entirely.

The Role of IQ and Gender

Studies reveal that people with autism who have average or above-average IQ are more than twice as likely to develop a substance use disorder compared to their neurotypical peers. When ADHD is also present, the risk increases further.

Gender also plays a role. Research has found that autistic individuals who do not drink are less likely to be male and tend to exhibit more autistic traits, suggesting that gender and the degree of autistic characteristics both influence substance use patterns within the autism community.

Types of Addiction in the Autism Community

Addiction among people on the autism spectrum can take multiple forms, including both substance-based and behavioral addictions:

• Alcohol use disorder — the most commonly studied substance use issue in this population
• Nicotine and other drug use — including prescription medication misuse
• Internet and gaming addiction — particularly prevalent given the structured, predictable nature of digital environments
• Gambling addiction — driven in part by pattern-seeking behavior

How Substance Use Affects Autistic Individuals

Substance use can be especially disruptive for people on the autism spectrum. It tends to dysregulate daily routines — which many autistic individuals rely on for stability — and can trigger a cycle of increased substance use to manage the resulting distress.

Additionally, substance use can worsen existing mental health conditions that commonly co-occur with autism, including anxiety and depression, creating compounding challenges that make recovery more complex without specialized support.

Treatment Approaches for Autism and Addiction

Treating addiction in people on the autism spectrum requires approaches that account for the unique neurological, sensory, and communication needs of autistic individuals.

Challenges in Diagnosis and Treatment

Identifying addiction in people with autism can be difficult for several reasons:

• Symptoms of addiction may overlap with or be masked by characteristics of autism
• Communication differences can make it harder for individuals to express that they are struggling with substance use
• Many healthcare providers lack training in recognizing the intersection of autism and addiction
• Standard addiction treatment programs may not accommodate sensory sensitivities or social communication differences

Evidence-Based Therapeutic Approaches

Research has shown that cognitive-behavioral therapy (CBT) adapted for autistic individuals can be effective in treating co-occurring autism and substance use disorders. Studies have found that participants in CBT-based group treatment displayed lower levels of alcohol use, craving, depression, anxiety, and reliance on passive coping strategies.

Other effective approaches include:

• Educational and directive therapeutic styles that provide clear structure and expectations
• Sensory-informed treatment environments that minimize overwhelming stimuli
• Family involvement in the treatment process to provide consistent support
• Individual therapy combined with medical and psychosocial interventions to address both addiction and the specific challenges associated with autism

The Importance of Early Intervention

Early identification and intervention for mental health concerns in autistic individuals can help prevent the development of substance use disorders later in life. Key strategies include:

• Screening for substance use risk as part of routine care for autistic individuals
• Building coping skills early through therapies focused on emotional regulation, social skills, and communication
• Creating supportive environments that reduce stigma and foster acceptance
• Ensuring access to specialized dual-diagnosis care from providers trained in both autism and addiction treatment

By recognizing the unique vulnerabilities that people on the autism spectrum face, families and treatment providers can take proactive steps to reduce addiction risk and support long-term well-being.

Sources

• Huang, J.S., Yang, F.C., Chien, W.C., et al. (2021). Risk of substance use disorder and its associations with comorbidities and psychotropic agents in patients with autism. Journal of Autism and Developmental Disorders, 51, 2295–2305.
• Brosnan, M. & Adams, S. (2021). The link between autism, alcohol use, and mental health in autistic adults. Research in Autism Spectrum Disorders, 86, 101810.
• Butwicka, A., Langstrom, N., Larsson, H., et al. (2017). Increased risk for substance use-related problems in autism spectrum disorders: A population-based cohort study. Journal of Autism and Developmental Disorders, 47(1), 80–89.
• Kronenberg, L.M., Goossens, P.J., van Busschbach, J., et al. (2014). Coping styles in substance use disorder and autism spectrum disorder: The role of the Big Five personality traits. Journal of Substance Use, 20(4), 286–291.
• Roux, A.M., Shattuck, P.T., Rast, J.E., et al. (2017). National Autism Indicators Report: Health and Health Care. Life Course Outcomes Program, A.J. Drexel Autism Institute.
• Substance Abuse and Mental Health Services Administration (SAMHSA). National Helpline: 1-800-662-4357. Free, confidential, 24/7 treatment referral and information. samhsa.gov