Many people reach an ADHD assessment after years of assuming they were simply disorganised or not trying hard enough. A proper evaluation replaces that explanation with an accurate one — and with strategies that fit how attention actually works. Children, adolescents and adults are all assessed here.

What is ADHD?
ADHD is a neurodevelopmental difference in how the brain regulates attention, activity and impulse control, and it can persist from childhood into adulthood. It is not a matter of intelligence or effort — many people with ADHD are bright, capable and working harder than those around them for the same results.
It presents in three broad ways: predominantly inattentive, predominantly hyperactive-impulsive, or a combination. The inattentive presentation is most often missed, particularly in girls and in adults, because it produces disorganisation and internal restlessness rather than visible disruption.
What causes ADHD?
ADHD has a strong genetic component and is present from childhood, even when it is not identified until adulthood. It is not caused by parenting, diet, screen time or lack of discipline. What is understood about its origins includes:
- A strong hereditary component — it frequently runs in families
- Differences in brain systems regulating attention and impulse control
- Premature birth or significantly low birth weight
- Certain prenatal exposures
- Symptoms present from childhood, even if only recognised later

Common symptoms
Symptoms vary between people, and you do not need to recognise all of these to benefit from an assessment.
- Difficulty focusing or staying on task
- Easily distracted
- Trouble managing time
- Forgetfulness in daily activities
- Restlessness or impulsively interrupting
- Difficulty following through on tasks
When to seek help
If persistent focus, disorganisation, or impulsivity issues interfere with work, studies, or relationships, an adult ADHD evaluation provides clarity.
How ADHD is diagnosed
There is no single test for ADHD. Diagnosis is made through a structured clinical assessment covering attention, organisation, time management, impulsivity and emotional regulation, their impact across more than one setting, and evidence that difficulties have been present since childhood. School reports, or an account from a parent, are helpful where available, since childhood onset is a diagnostic requirement.
Several conditions can look like ADHD or occur alongside it — anxiety, depression, sleep disorders, thyroid problems and substance use among them — and these are assessed at the same time. Adults are frequently told they cannot have ADHD because they did well academically, but compensating successfully at high personal cost does not exclude the diagnosis.

Treatment options
Treatment combines practical strategy and, in many cases, medication. The aim is not to change who you are, but to reduce the friction between how your attention works and what daily life demands of it.
Behavioural strategies and coaching. Externalising organisation — structured routines, written systems, breaking tasks into visible steps, managing distraction in the environment — addresses the practical difficulties directly, and works considerably better once attention is more regulated.

Medication. Medication is effective for most people and improves regulation of attention and impulse control. Unlike antidepressants, benefit is usually apparent within days, allowing the dose to be adjusted by response. Dr Kritika Surana explains how it works, common side effects, and monitoring including blood pressure and appetite, before anything starts.
Treating what accompanies it. Anxiety, depression and sleep problems are common alongside ADHD and often improve as it is treated. Practical adjustments at work or school also help, and documentation can be provided to support them.
What recovery looks like
ADHD does not resolve, and treatment is not a cure. What changes is how manageable it is: with the right combination of medication and strategy, most people find that tasks which previously took enormous effort become ordinary. Where medication is used, the dose is adjusted over several appointments to balance effect against side effects — this titration period is expected, not a sign that treatment is failing.
Many people describe the diagnosis itself as significant, independent of treatment. Understanding that a lifelong pattern of difficulty has an explanation, and is not a personal failing, often changes how people regard their own history.

How Trio Mindspace can help
Dr Kritika Surana conducts comprehensive diagnostic evaluations and develops plans featuring behavioural strategies, therapy, and medication management.

Every plan begins with a full assessment rather than an assumption. Dr Kritika Surana will explain what she thinks is happening, set out the options, and agree the approach with you before anything starts. You can read more about her background and approach, or see all conditions treated at the clinic.
Frequently asked questions
Yes. ADHD begins in childhood but is frequently identified in adulthood, particularly in people who coped well academically and only struggled once responsibilities increased. Assessment includes childhood history alongside current functioning.
A structured clinical interview covering current difficulties and developmental history, standardised rating scales, and where possible information from a family member or school reports. Other explanations — anxiety, depression, sleep deprivation, thyroid issues — are considered before a diagnosis is made.
No. Behavioural strategies, environmental changes, structured routines and therapy for the low self-esteem that often accompanies undiagnosed ADHD are all part of the plan. Medication is one component and is discussed on its merits.
Symptoms often change with age rather than disappearing: overt hyperactivity tends to decrease while difficulties with attention and organisation frequently persist. Treatment is adjusted as the child develops.
Yes, and this is common. ADHD is frequently missed in childhood, particularly the inattentive presentation and particularly in girls. Diagnosis in adulthood requires evidence that difficulties were present in childhood, even if nobody recognised them at the time — school reports or an account from a parent can help establish this.
No. Effective treatment should make it easier to do what you already want to do, not alter who you are. Feeling flat, numbed or unlike yourself usually indicates the dose is too high or the medication is not the right fit, and is a reason to raise it at review rather than to continue.
No. ADHD is a neurodevelopmental condition with a strong genetic basis, present from childhood. Screen time and inconsistent structure can worsen the visible difficulties, but they do not cause the condition.
Yes. Many people with ADHD compensate successfully through high intelligence, intense effort, or highly structured environments, often at significant personal cost in stress and exhaustion. Achievement does not rule out the diagnosis; the assessment looks at the effort required, not only the outcome.