A lifelong, 24-hour condition
A common misconception is that children “grow out of” ADHD. In reality, it often persists: by early adulthood around 15% of those diagnosed in childhood still meet full criteria, while a further 60–70% continue to experience symptoms that significantly affect daily life.
ADHD isn't limited to school or work. It can affect relationships, family life, emotional wellbeing, sleep, organisation, finances and self-esteem.
What is ADHD?
Inattention
Difficulty sustaining focus, organisation and memory.
Hyperactivity
Physical restlessness or an internal sense of being “on the go”.
Impulsivity
Acting without thinking, or difficulty waiting.
Not everyone experiences these in the same way. ADHD exists on a spectrum and no two people present identically.
How ADHD is diagnosed
Through a comprehensive clinical assessment — there is no blood test or brain scan. An assessment typically includes:
- A detailed developmental history
- Exploring current difficulties at home, school, work and in relationships
- Standardised questionnaires and rating scales
- Information from parents, partners, teachers or employers where appropriate
- Consideration of co-occurring conditions
Objective measures such as QbCheck may support assessment, but diagnosis remains a clinical decision.
ADHD in children
- High activity or fidgeting
- Difficulty staying seated or waiting
- Frequent distraction and forgetfulness
- Difficulty following instructions
- Emotional outbursts or frustration
- Challenges with peers
Some children, particularly girls, present more quietly — with inattentiveness, internalised anxiety, perfectionism or daydreaming — and are often overlooked.
ADHD in adults
Hyperactivity often becomes internal restlessness. As responsibilities grow, organisation, time management and emotional regulation can become harder. Many adults describe working much harder than others to achieve the same outcomes.
Masking & late diagnosis
Many people — particularly women and high-achieving adults — mask ADHD through over-preparation, perfectionism, people-pleasing or overworking. This can lead to chronic stress, sleep difficulties, anxiety, low mood and burnout.
Family patterns & co-occurring conditions
ADHD has a strong genetic component; when a child is diagnosed, parents or siblings often recognise similar traits. Co-occurring conditions are common, including autism, dyslexia, anxiety, depression, sleep disorders and substance use difficulties.
Many people see significant improvements in wellbeing, functioning and self-compassion after diagnosis and support. If you're unsure whether an assessment is right, we're happy to talk it through.