What is ADHD?
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ADHD (Attention Deficit Hyperactivity Disorder) is a neurodevelopmental difference — a way a brain can be wired. It is recognised in clinical manuals like the DSM-5, the guide professionals use to assess and describe patterns. That clinical lens is useful, but it does not always capture the whole lived experience or the many ways ADHD can show up.
In everyday life, it can help to think of ADHD as a lifelong neurotype. It shapes how someone thinks, feels, and responds to the world, affecting focus, energy, emotions, and behaviour. It is not a flaw. It is a different processing style that brings both strengths and challenges, depending on the environment and the support around the child.
A helpful picture: many children with ADHD feel like they have a powerful engine with lighter brakes. The goal is not to change the engine. The aim is to strengthen the brakes — the skills and supports that help them start, pause, switch, and stop.
ADHD and attention
ADHD is not a lack of attention. It is difficulty regulating attention. Children with ADHD can pay attention — just not always when they need to, for as long as they need to, or on the thing they need to.
This is not laziness or disrespect. Their brain may struggle to switch attention on, keep it going, or shift it when required. A child may appear unfocused, but in reality their attention is often scattered across many things at once, or locked into intense hyperfocus on something that interests them.
How might ADHD present in boys?
Many boys show the more visible signs of ADHD — hyperactivity, impulsivity, and difficulty sustaining attention. In the classroom or at home, this can look like blurting out answers, tapping on the desk, or constantly moving. Sometimes boys are seen as the class clown. They are more likely to be noticed for outward behavioural challenges, and because of this are often identified and assessed earlier than girls.
Signs seen in both boys and girls with ADHD:
- Constant fidgeting or needing to move.
- Forgetfulness — homework, equipment, dates, instructions.
- Disorganisation.
- Calling out or disrupting, or interrupting conversations.
- Emotional outbursts.
- Leaving their seat frequently or struggling to sit still.
- Going off topic or getting easily side-tracked.
- Intense hyperfocus on something they enjoy, then real difficulty switching away.
- Difficulty settling back after break or transition times.
- Trouble waiting their turn.
- Difficulty starting or finishing tasks.
- Making careless mistakes.
- Losing things — PE kit, school tie, keys, permission slips.
- Easily distracted by sounds, movement, or thoughts.
- Reluctance to engage in tasks that don't interest them.
How might ADHD present in girls?
ADHD in girls can look very different from the more obvious signs we tend to notice in boys. Many girls show less visible hyperactivity, especially if they have the inattentive type (previously called ADD). Instead, you might notice daydreaming, staring out of the window, or behaviours like hair twirling, skin picking, or nail biting. They may appear anxious, sad, or perfectionistic, and often have difficulties with friendships.
Girls often appear to be coping well because their struggles are hidden — work may look neat, and they may not cause disruption. However, after holding it together all day, they may come home exhausted, irritable, or tearful, with emotional outbursts or total shutdowns. This split can be confusing for families.
While hyperactivity may not always be obvious outwardly, it can be happening internally — as racing thoughts or thought loops. Some girls also freeze when starting tasks. Many girls learn to mask their difficulties by working extra hard, double-checking, and polishing everything. On the surface this looks like conscientiousness; underneath it can lead to anxiety, exhaustion, and burnout.
Signs seen in girls with ADHD:
- Daydreaming or zoning out.
- Hair twirling, skin picking, nail biting, or similar repetitive behaviours.
- Appearing anxious, sad, or overly perfectionistic.
- Emotional outbursts after school or when plans change.
- Irritability, especially when tired or overwhelmed.
- Exhaustion after school, needing quiet time to decompress.
- Shutting down or going silent.
- Difficulty starting tasks — a freeze response at the first step.
- Talking a lot as a way to self-regulate rather than to distract.
- High self-criticism and a strong drive to get it right.
- Checking and rechecking the school bag, homework, and notes.
- Redoing work to perfection.
- Social awkwardness or finding it hard to keep up in fast conversations.
- Seeming shy, quiet, or fading into the background.
- Low self-esteem, anxiety, or signs of burnout.
- Losing things and being disorganised despite great effort to stay on top of it.
What other conditions may present alongside ADHD?
Children with ADHD often live with a set of overlapping challenges, many of which arise from navigating environments that do not fully understand or support their neurobiology. These are not inherent flaws, but natural outcomes of a mismatch between the child's needs and the systems around them.
Low self-esteem can develop when a child is repeatedly labelled as lazy, disruptive, or a problem. Difficulties with organisation, remembering items, or initiating tasks may be misunderstood as a lack of effort. Repeated punishment for behaviours that are often forms of self-regulation — moving around, talking out of turn, struggling to return from break — can compound feelings of inadequacy.
Rejection Sensitivity Dysphoria (RSD) is an intense emotional response to perceived or actual rejection, criticism, or teasing — particularly from people who matter to the child. This can feel like a real threat and cause significant emotional pain.
Emotional regulation differences that may co-occur include:
- Anxiety.
- Depression.
- Heightened anger responses.
- Obsessive compulsive traits (OCD).
- Oppositional defiant patterns (ODD).
Cognitive and motor differences that may co-occur include:
- Learning differences.
- Fine and gross motor coordination challenges.
- Executive function differences: planning, prioritising, and time management.
In some cases, tic disorders may also be present. Many of these co-occurring challenges are secondary — not caused by ADHD itself, but by the ongoing effort of coping with unmet needs in an environment that does not yet recognise or value the child's way of thinking, learning, and being.
