Neurodiversity and Neurodivergence.

What is Neurodiversity?

Neurodiversity is every individual diverse way of being themselves.

Neurodiversity, neurodivergence, or neurovariance, refers to variations in the human brain and cognition, for instance in sociability, learning, attention, mood and other mental functions. (Wikipedia)

What is Neurodivergence?

Being neurodivergent means having a brain that works differently from the average or “neurotypical” person. This may be differences in social preferences, ways of learning, ways of communicating and/or ways of perceiving the environment.
Such as: Autism, ADHD, Dyslexia, Sensory Processing, Auditory Processing, list not exhaustive.

Many neurodivergents have overlapping needs/diagnoses, often called co-occurrences, such as Autism and ADHD.

Important note

This page shares general information only. For assessment, diagnosis, or personalised support, it’s always best to speak with a qualified healthcare professional.

Understanding autism, ADHD, and their overlap

Autism and ADHD are both neurodevelopmental differences. They affect how a person thinks, processes information, experiences the world, and interacts with others. Some people have one, some have the other, and many have both—often called AuDHD in the neurodivergent community.

This page explains each, then explores what happens when traits combine and how that can impact daily life.

What is autism?

Autism (often called autism spectrum condition or ASC) is a lifelong neurotype that affects:

  • Social communication and interaction
  • Sensory processing
  • Patterns of thinking, interests, and routines

Autistic people may:

  • Social communication:• Prefer clear, direct language rather than hints or implied meanings
  • Find small talk tiring or confusing
  • Need more time to process spoken information
  • Social interaction:• Enjoy deep, focused conversations on specific interests
  • Struggle with unstructured group situations or noisy social events
  • Sensory processing:• Be highly sensitive (or under-sensitive) to sound, light, touch, smell, taste, or movement
  • Find certain environments overwhelming (e.g. supermarkets, classrooms, open-plan offices)
  • Thinking and routines:• Prefer predictability, structure, and clear expectations
  • Have intense interests or “special interests” that bring joy, focus, and expertise
  • Find sudden changes or unclear plans very stressful

Autism is not a behaviour problem and not something to “fix”. It’s a different way of being human, with both challenges and strengths.

What is ADHD?

ADHD (attention-deficit/hyperactivity disorder) is another neurodevelopmental difference that affects:

  • Attention and focus
  • Impulsivity
  • Activity levels
  • Executive functioning (planning, organising, starting and finishing tasks)

People with ADHD may:

  • Attention and focus:• Struggle to focus on tasks that are boring, repetitive, or not immediately rewarding
  • “Hyperfocus” on things that are interesting or urgent, losing track of time
  • Impulsivity:• Speak or act quickly without always thinking through consequences
  • Find it hard to wait their turn or tolerate delays
  • Activity levels:• Feel internally restless, fidgety, or “on the go”
  • As adults, this may look more like mental restlessness than obvious hyperactivity
  • Executive functioning:• Have difficulty planning, prioritising, and organising tasks
  • Struggle with time management (“time blindness”)
  • Find it hard to start tasks, even when they really want to do them

ADHD is not laziness or lack of willpower. It’s about how the brain regulates attention, motivation, and action.

When autism and ADHD coexist (often called AuDHD)

Many people are both autistic and ADHD. This overlap is common and brings its own unique profile—often called AuDHD.

Shared and overlapping traits

Autism and ADHD can both involve:

  • Executive function challenges:
    Difficulties with planning, organising, switching tasks, and remembering steps.
  • Emotional regulation differences:
    Strong emotions, quick escalation, and difficulty “coming down” after stress.
  • Sensory differences:
    Sensitivity to noise, light, textures, or crowds.
  • Social challenges:
    Misunderstandings, feeling “out of sync” with peers, or struggling with unspoken rules.

Because of this overlap, it can be hard to tell where autism ends and ADHD begins—and many people are misdiagnosed with only one.

The internal “tug-of-war”

When autism and ADHD traits combine, they can:

  • Pull in opposite directions:• Autism may crave routine, predictability, and sameness.
  • ADHD may seek novelty, stimulation, and change.
    Result: wanting structure but also getting bored with it; setting routines then rebelling against them.
  • Intensify executive function load:• Autism can make change and transitions harder.
  • ADHD can make starting, sustaining, and finishing tasks harder.
    Result: knowing exactly what needs to be done, but feeling blocked at multiple points.
  • Complicate social experiences:• Autistic traits may affect reading social cues and preferring direct communication.
  • ADHD traits may lead to interrupting, talking a lot, or jumping between topics.
    Result: being misunderstood as rude, disinterested, or “too much”, even when trying very hard to connect.

How autism, ADHD, and AuDHD can impact daily life

Everyone’s experience is different, but these are common areas of impact.

  1. Executive functioning

Executive functions are the brain’s “management system”: planning, organising, prioritising, starting, and finishing tasks.

People with autism, ADHD, or both may:

  • Planning and organisation:• Struggle to break big tasks into smaller steps
  • Lose track of deadlines or forget important details
  • Task initiation:• Feel “stuck at the start” even when motivated
  • Procrastinate not from laziness, but from overwhelm or decision paralysis
  • Sustaining attention:• Drift off during long meetings, lessons, or conversations
  • Need movement, fidgeting, or background noise to focus
  • Time management:• Underestimate how long things will take
  • Swing between last-minute rush and burnout

For AuDHD, these challenges can be amplified: the need for structure (autism) plus difficulty using structure consistently (ADHD) can create constant friction.

  1. Sensory processing and environment

Sensory differences can affect:

  • Workplaces and schools:• Noise, bright lights, strong smells, or busy layouts can be exhausting
  • Open-plan offices or classrooms may make focus almost impossible
  • Daily tasks:• Shopping, public transport, or appointments can be draining or overwhelming
  • Self-care:• Certain clothes, foods, or grooming tasks may be uncomfortable or intolerable

For someone with both autism and ADHD, sensory overload can also worsen impulsivity, emotional reactions, and shutdowns or meltdowns.

  1. Social life and relationships

Social experiences may be affected by:

  • Communication style differences:• Preferring honesty and directness over small talk or social “white lies”
  • Missing subtle cues like tone, facial expressions, or hints
  • Energy and pacing:• Being very talkative and fast-paced (ADHD)
  • Or needing more processing time and quiet (autism)
  • Masking:• Copying others, suppressing natural behaviours, or over-preparing for interactions
  • This can lead to exhaustion, burnout, and feeling “unknown” or unseen

AuDHD individuals may feel both “too much” and “not enough” socially—too intense, too quiet, too blunt, too scattered—depending on the context.

  1. Education and work

In school, college, or work, autism and ADHD can affect:

  • Learning and performance:• Inconsistent performance: brilliant one day, struggling the next
  • Being labelled “potential not reached” despite huge effort
  • Environment fit:• Thriving in roles that match interests and strengths
  • Struggling in rigid, noisy, or highly bureaucratic settings
  • Misunderstandings:• Behaviour seen as defiance, laziness, or disorganisation
  • Strengths (creativity, deep focus, pattern-spotting, problem-solving) overlooked

With the right adjustments, many autistic, ADHD, and AuDHD people excel—especially in roles that value innovation, detail, honesty, and out-of-the-box thinking.

  1. Mental health and burnout

Because the world is largely designed for neurotypical ways of thinking, neurodivergent people often experience:

  • Chronic stress and anxiety
  • Low self-esteem from years of criticism or misunderstanding
  • Burnout—a deep, long-lasting exhaustion where basic tasks feel impossible

Burnout is especially common in AuDHD, where the brain is constantly juggling conflicting needs (routine vs novelty, rest vs stimulation, masking vs authenticity).

Strengths and positives

Autism, ADHD, and AuDHD are not just about difficulties. Many people also experience:

  • Deep focus and expertise in areas of interest
  • Creativity and original thinking
  • Strong sense of justice and fairness
  • Honesty, loyalty, and reliability
  • Ability to spot patterns, connections, and details others miss

When environments are flexible and supportive, these strengths can shine.

Support, adjustments, and next steps

If you recognise yourself or someone you care about in this description, possible next steps include:

  • Seeking assessment:
    Talking with a GP, psychologist, or psychiatrist about autism and/or ADHD.
  • Reasonable adjustments:
    In education or work, asking about accommodations such as:• Quiet spaces or noise-reducing options
  • Flexible deadlines where possible
  • Written instructions and clear expectations
  • Permission to use tools (timers, planners, fidgets, headphones)
  • Self-education and community:
    Learning from neurodivergent voices, support groups, and advocacy organisations.
  • Mental health support:
    Speaking with a therapist or counsellor who understands neurodivergence.

Only qualified, registered professional can provide diagnosis or treatment, but understanding these patterns can be a powerful first step toward self-acceptance and better support.

Autism

Autism

ADHDADHD

Specific Learning Difficulties (SpLD)

Dyslexia, Dyscalclia, Dysgraphia, Dypraxia (DCD)