What is ADHD and what are the 3 types?

ADHD (Attention-Deficit/Hyperactivity Disorder) is a neurodevelopmental condition characterised by persistent patterns of inattention, hyperactivity, and/or impulsivity.

Many adults with ADHD are highly intelligent, creative, and intuitive. However, they may face challenges such as distractibility, poor working memory, and restlessness. Research shows that around 65% of children with ADHD will continue to experience symptoms into adulthood.

These symptoms can significantly affect daily functioning and relationships.

Due to the rising awareness and recognition of ADHD, demand for diagnostic assessments has increased, leading to long waiting times of sometimes months or even years. Our goal is to reduce this wait by offering assessments within weeks of your initial enquiry.

Is ADHD the same for everyone?

Not at all. ADHD symptoms typically fall into three main categories: inattention, hyperactivity, and impulsivity. While everyone may occasionally exhibit these behaviours, people with ADHD experience them consistently and to a degree that affects daily life.

There are three main types of ADHD, based on the predominant symptoms:

ADHD – Inattentive Type

Primarily involves difficulties with attention and focus. Symptoms may include:

    • Trouble concentrating
    • Difficulty starting or finishing tasks
    • Missed deadlines
    • Losing track of conversations
    • Frequent daydreaming
    • Forgetfulness
    • Struggles with planning and organisation

ADHD – Hyperactive-Impulsive Type

Involves challenges with impulsivity and excessive activity. Symptoms may include:

    • Physical restlessness, fidgeting, or inability to sit still
    • Mental hyperactivity—feeling either disengaged or overly focused
    • Impulsive actions, such as interrupting, speaking out of turn, or making quick decisions without considering the consequences

ADHD – Combined Type

This is the most common form and includes symptoms from both inattentive and hyperactive-impulsive types. These symptoms are often more intense and wide-ranging.

Can ADHD symptoms change over time?

Yes, symptoms often evolve with age.

  • In young children, hyperactivity and impulsivity are usually the most noticeable.
  • As children enter adolescence and face more academic and social pressure, inattention often becomes more prominent, affecting school performance and friendships.
  • During the teenage years, hyperactivity may lessen but can appear as inner restlessness or constant fidgeting. Impulsivity and inattention often remain and can contribute to risky behaviours such as substance use or unsafe sex.
  • In adulthood, many people continue to experience inattention, impulsivity, and restlessness, though symptoms can become less intense over time.

Should I consider an ADHD assessment?

If you’re wondering whether you might have ADHD, the first step is completing a screening questionnaire which is available through our ‘Contact Us’ page.

Once submitted, our experienced team will review your responses to determine if a full assessment is appropriate. If ADHD seems likely, we’ll guide you through the available assessment options tailored for adults and children individually.

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