Pathological Demand Avoidance (PDA) and Addiction

Pathological Demand Avoidance (PDA) is a profile on the autism spectrum that affects how a person responds to everyday demands and expectations.

For some people, that experience can overlap with addiction in ways that are not always obvious at first.

Understanding that connection can help make sense of behaviours that might otherwise feel confusing, especially when traditional approaches to addiction do not seem to work.

What Is PDA?

PDA is often described as an extreme avoidance of everyday demands, driven by anxiety and a need to feel in control.

This can include:

• Avoiding tasks that feel expected or pressured
• Struggling with routines or structured environments
• Experiencing strong emotional responses when demands increase
• Using distraction, withdrawal, or control to reduce that pressure

It is not simply about not wanting to do things.
For many people, it is a nervous system response to feeling overwhelmed or trapped.

Where Addiction Can Fit In

For someone with PDA, substances can sometimes become part of how they manage internal pressure.

This might look like:

• Using substances to reduce anxiety linked to expectations
• Avoiding responsibilities or situations through substance use
• Creating a sense of control or escape when demands feel too much
• Struggling with structured recovery approaches that feel restrictive

From the outside, this can sometimes be misunderstood as resistance or lack of motivation.

From the inside, it can feel like trying to cope with constant pressure.

This overlap is not uncommon. Some research from the University of Cambridge has suggested that autistic individuals may be more likely to use substances as a way of managing internal experiences such as anxiety, overwhelm, or sensory pressure, even where overall substance use is not higher.

Why Standard Approaches Don’t Always Land

Many addiction treatment models rely on structure, routine, and external expectations.

For someone with PDA, those same elements can:

• Increase anxiety
• Trigger avoidance
• Lead to disengagement from support

This does not mean support cannot work. It means it often needs to be approached differently.

A Different Way of Supporting Recovery

Support for someone with PDA often works better when it focuses on:

• Reducing perceived pressure rather than increasing it
• Offering choice and collaboration instead of strict direction
• Building trust over time rather than expecting immediate compliance
• Understanding avoidance as communication, not defiance

Small shifts in how support is offered can make a significant difference.

Making Sense of the Pattern

When PDA and addiction overlap, the pattern is not always about the substance itself.

It is often about:

• Managing anxiety
• Navigating expectations
• Trying to feel safe and in control

Understanding that can change how someone views their own behaviour, and what kind of support might actually help.

A Lived Experience Perspective

As someone with PDA myself, and with a daughter diagnosed at age 4, I know what it’s like to rely on substances and behaviours to escape the constant demands and pressures of life.

On the outside, it can look like competence, but on the inside, it can feel like a steam engine building pressure with nowhere to go.

PDA in adults does not always look like avoidance. In fact, many of us are capable, hard-working, intuitive people.

What we often struggle with is internalised anxiety, and masking it well enough that most people would not notice.

In reality, PDA is a nervous system response, and when we are around people who feel similar to us, people who understand without needing things to be explained, that pressure can ease slightly.

That difference between how it looks and how it feels is often where things get missed.

What Can Help When PDA and Addiction Overlap

Support for someone with PDA often needs to be adapted, not intensified.

Approaches that rely heavily on structure, pressure, or rigid expectations can sometimes increase resistance rather than reduce it.

What tends to be more helpful is how support is offered, rather than the specific model used.

This can include:

• Low-demand approaches
  Reducing unnecessary pressure and allowing space to engage at a manageable pace
• Collaborative therapy
  Working with someone rather than directing them, with a focus on choice and autonomy
• Flexible structure
  Providing consistency without making it feel rigid or imposed
• One-to-one support
  Creating a safer, more contained environment where pressure is lower
• Trauma-informed approaches
  Recognising how the nervous system responds to perceived demands and stress
• Building trust first
  Taking time to develop a sense of safety before expecting change

In residential settings, this can sometimes be easier to achieve, as the environment can be adapted to reduce external pressures and create a more consistent sense of safety.

Not every approach will work for everyone.

But when support feels less like something being done to someone, and more like something they are part of, it often becomes easier to engage with.

Getting Support

If any of this feels familiar, it can help to speak to someone who understands both addiction and neurodivergence.

Support does not have to follow a rigid structure to be effective.

In some cases, a more flexible, person-led approach can make it easier to begin and continue the recovery process.

Where autism and addiction are both part of the picture, this can sometimes be understood through a dual diagnosis lens:
Autism and Addiction

You can learn more about different approaches to support here:
Addiction Treatment