As parents or teachers, we often equate a child's lack of focus in class with laziness. In reality, this may stem from a different way the brain works in Attention Deficit Hyperactivity Disorder (ADHD). However, specific learning disorders (SLD)—such as dyslexia or dyscalculia—can present in very similar ways.
These issues are extremely common in children. According to data from the University of Hong Kong, around 5 to 7 out of every 100 school-aged children have ADHD, with a reported prevalence in Hong Kong of approximately 6.4%. Boys are affected at a higher rate than girls. Learning difficulties also account for a significant proportion of cases.
So how can you tell whether your child has ADHD or a learning difficulty?
Many people mistakenly believe that children with ADHD could concentrate “if only they tried harder”, and blame inattention on laziness or a lack of willpower. Yet scientific evidence clearly shows that ADHD is not laziness—it is a neurodevelopmental disorder. Children with ADHD have noticeable differences in the brain regions responsible for regulating attention, impulses, and executive functions (such as planning, organising, and sustaining effort). In particular, levels of neurotransmitters like dopamine and noradrenaline are lower, which means they become hyper-focused on activities offering immediate rewards (for example, playing video games), but find it extremely difficult to engage with longer-term or less stimulating tasks (such as lessons or homework).
The reason is that even when these children desperately want to do well, their brain struggles to “switch on” or “stay switched on”. They try hard, but often fail, leading to emotional meltdowns, self-blame, and statements like “I’m just stupid” or “I’m so lazy”.
ADHD and specific learning disorders (SLD) are frequently confused because both affect school performance, and it is very common for children with ADHD to also have an SLD—the overlap can be as high as 30–50%.
However, they are distinct neurodevelopmental conditions. In simple terms: children with ADHD “want to learn but can’t focus”; those with SLD “can focus but still can’t learn”. When the two occur together, the situation becomes even more challenging, as ADHD exacerbates the effects of SLD, resulting in poorer academic results and lower self-confidence.
Suspect ADHD if: the child shows inattention, impulsivity, or hyperactivity across multiple settings (home, school, extracurricular activities); becomes intensely focused on interesting things but strongly resists boring ones; frequently forgets things, procrastinates on homework; and has difficulty regulating emotions.
Suspect a learning difficulty if: the child has normal (or even high) intelligence but consistently underperforms in specific subjects; makes errors when reading (skipping words or lines); produces off-topic writing with messy handwriting; understands mathematical concepts but makes frequent calculation mistakes; and shows limited progress despite effort.
Both may be present if: the child struggles to concentrate and, even when focused, still cannot read or write properly; school reports often note “bright but underachieving”.
If you notice your child struggling to concentrate in class, it is probably not laziness but a need for the right kind of support.
Both ADHD and SLD are diagnosable and treatable. An early, comprehensive assessment by a child psychiatrist can accurately differentiate the issues and lead to a personalised plan: for ADHD, this might include medication, behavioural therapy, and school accommodations; for SLD, targeted interventions such as specialist literacy or numeracy training.
Remember, these children are not “unwilling to try”—they simply need the right approach. When we replace blame with understanding, their potential often exceeds expectations. Many successful individuals, such as the Olympic swimmer Michael Phelps (known as the “Flying Fish”), have ADHD but have thrived with appropriate support.
If you suspect your child may have these difficulties, consult a child psychiatrist as soon as possible.
