Autism Spectrum Disorder (ASD) is a neurodevelopmental condition that exists on a spectrum, affecting communication, behaviour, and sensory processing. In the UK, it is estimated that at least 1.1% of the adult population is autistic, with that number rising to 2% for children.

Autism is not a diagnosis that automatically leads to addiction. Research does show that there is a growing recognition of the overlap between autism and substance use disorders.

In a lot of cases, it appears that addictions may develop as a coping mechanism for stress, sensory overload, or social challenges that many autistic people suffer from. Just as substances can be used by people who know they have autism to deal with their symptoms, addiction can also mask autistic traits. Austistic people may walk a different and more difficult road during recovery. This is why it is important to understand the connection between autism and addiction, so you can find or help provide appropriate support and treatment.

What Is Autism Spectrum Disorder (ASD)?

Autism is a neurodevelopmental condition. It is a spectrum, and each person with it is very different, but they are grouped under the umbrella term because they share some common characteristics.

Common characteristics of ASD include:

  • Differences in communication and social interaction
  • Sensory sensitivities (things like bright lights or loud noises can be overwhelming)
  • Preference for routines or structured environments
  • Get upset or anxious about new situations and social encounters
  • Become hyper-focused on certain things and have dedicated interests

There is emerging research suggesting a connection between autism and substance use disorders.

Studies have found that autistic individuals may face an increased risk of substance-related problems, particularly when other conditions such as ADHD are present. This same study found that 19 to 30% of autistic adults in clinical settings were found to have substance use disorders.

This shows that there is a need for more awareness and tailored support for individuals with autism.

It is not a foregone conclusion that people on the spectrum will struggle with addiction. Addiction risk varies widely depending on factors such as mental health, environment, and support networks. It’s important to recognise, though, the more complicated risks when it comes to autism and addiction.

Why Autistic Individuals May Be More Vulnerable to Addiction

There are several reasons why autistic individuals may be more vulnerable to addiction.

Self-Medication for Mental Health Challenges

Many autistic people experience co-occurring conditions such as anxiety, depression, or ADHD. This is known as dual diagnosis. Substances may be used to manage emotional distress or regulate mood and cope with dual diagnosis symptoms.

Autistic people are over three times more likely than others to report using drugs or alcohol to manage behavioural or mental health symptoms.

Social Pressure and Masking

Autistic individuals often feel pressure to “fit in” socially and use alcohol or drugs to reduce social anxiety or help them participate in social situations.

To fit in with others, autistic people mask. They suppress their autistic traits, and doing this can contribute to emotional exhaustion and lead to increased vulnerability to substance use.

Sensory Regulation

Sensory sensitivities are common in autism, with people being overwhelmed by loud and bright settings. Autistic individuals may use substances to numb overwhelming stimuli or create a sense of calm.

Neurological and Reward Processing Differences

Some research suggests neurological differences may make certain behaviours or substances feel particularly rewarding, increasing addiction risk. Studies suggest that those with autism do not find social interaction rewarding. This may lead autistic people to isolation and engaging in less healthy behaviours that contribute to addiction too.

Types of Addiction Linked to Autism

Common addictions linked to autistic adults are:

  • Alcohol addiction
  • Drug addiction (prescription or illicit substances)
  • Behavioural addictions such as gaming, gambling, or internet use
  • Nicotine addiction

Many autistic individuals may be particularly drawn to structured or repetitive behaviours to help self-regulate anxiety and manage sensory input. This could mean they engage in addictions, such as smoking, as a stim and come to rely on the repetition of the act and build an attachment to the addiction as a result.

Especially with behavioural addictions, this can be the case. Activities like gaming and gambling follow structures and repetitions that can feel highly rewarding.

Signs of Addiction in Autistic Individuals

Spotting addiction in autistic individuals can be harder, as they may present differently. Also, addiction signs are often overlooked or misinterpreted as just usual autistic traits.

Signs of addiction in autistic people include:

  • Increased reliance on substances to cope with stress or social situations
  • Withdrawal from daily responsibilities or relationships
  • Escalating substance use over time
  • Changes in mood, behaviour, or routines
  • Financial issues
  • Loss of interest in activities they once enjoyed

Challenges in Diagnosing Autism and Addiction

Just as substances can be used by people who know they have autism to deal with their symptoms, addiction can also mask autistic traits. In fact, many autistic adults remain undiagnosed until later in life, and a study last year found that 89 to 97% of middle-aged and autistic adults in the UK are undiagnosed.

Whether people are aware or not, the challenges come to traditional addiction treatment programmes as they may not fully accommodate sensory or communication differences. If someone does not feel comfortable in an alcohol or drug rehab, they will likely leave or not engage properly with recovery efforts.

Neurodiversity-informed treatment approaches are important because recovery is not one size fits all. Treatment that recognises and reacts to the differences in how people experience the world means these people feel less isolated, are more comfortable and get support that is beneficial and gives them some agency to make positive steps.

Treatment and Support for Autism and Addiction

Integrated treatment is treatment that considers both addiction and neurodevelopmental needs. At a private drug and alcohol rehab such as Ocean Recovery, you’ll go through a personalised treatment programme that recognises you need a different approach.

Adapted therapeutic approaches include:

  • Cognitive Behavioural Therapy (CBT): a type of structured therapy that will help you recognise your emotions and how they are linked to situations, and question unhealthy and unhelpful thought patterns.
  • Structured therapy environments: Residential rehab follows clear daily regimens, meaning there is little to surprise people, and they know what to expect daily.
  • Sensory-aware treatment settings: Having areas where sensory input can be managed (dimmable lights, quiet zones, flexible seating options) supports people with sensory differences they have, allowing them not to become overwhelmed.

Residential rehabilitation, therapy, and long-term support are critical to recovery success. With professional help and continuing support, you can build a strong foundation of coping skills in a structured environment and maintain a connection with people who know what you are going through.

When to Seek Professional Help

If your addiction is affecting your daily life, you should seek professional help. Signs that an addiction is impacting your well-being include:

  • Experiencing withdrawal symptoms when you stop
  • Having regular physical health issues
  • Deteriorating mental health
  • Isolating yourself from others
  • Neglecting life responsibilities
  • Other people are beginning to comment on your addiction

When it comes to addiction in autistic adults, the problem will only get worse if you ignore it. Early intervention is key, and accessing specialised support will give you the best chance of achieving long-term recovery.

If you are struggling or a family member of someone who is, it’s important to seek guidance from addiction professionals and find a drug and alcohol rehab that is suited for the situation.

Want to Know More About Neurodiversity and Addiction? Reach Out Today

Autism and addiction can overlap in complex ways. These often intersect due to mental health challenges, sensory differences, and social pressures, which leave autistic individuals grasping for ways to cope.

The good news is that with the right understanding and tailored treatment, recovery is achievable. Ocean Recovery provides supportive and specialised care that can help people build healthier coping strategies and improve their long-term wellbeing.

For more information about autism and substance misuse and how we can help, contact the team today.

John Gillen - Director at Ocean Recovery

John Gillen - Author - Last updated: March 12, 2026

John is one UK’s leading professionals in the addiction recovery industry. Pioneering new treatment techniques such as NAD+ and ongoing research into new therapy techniques such as systematic laser therapy, John is committed to providing the very best treatment for people throughout the UK and Europe. During his extremely busy schedule, John likes to regularly update our blog section with the latest news and trends in the industry to keep visitors to our site as well informed as possible on everything related to addiction treatment.