Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition that can affect attention, activity level, impulse control, organisation, and day-to-day functioning. It is often associated with childhood, but ADHD can continue into adulthood and may not be recognised until later in life.
ADHD is more than occasional distraction, restlessness, or forgetfulness. Everyone experiences these things from time to time. ADHD involves persistent patterns that can interfere with learning, work, relationships, routines, or other important areas of life.
Common signs of ADHD
Symptoms vary from person to person. Some people mainly struggle with attention and organisation, while others experience more noticeable restlessness or impulsive behaviour. Many people have a combination of difficulties.
- Difficulty staying focused on conversations, lessons, reading, or tasks
- Frequently losing items or forgetting instructions and appointments
- Struggling to begin, organise, or finish tasks
- Being easily distracted by surrounding activity or unrelated thoughts
- Interrupting, acting quickly without considering consequences, or finding it hard to wait
- Fidgeting, feeling restless, or having difficulty remaining seated when expected
- Problems managing time, routines, paperwork, or competing priorities
These signs can look different at different ages. A child may have trouble following classroom routines, completing schoolwork, or getting along with peers. An adult may struggle with deadlines, household responsibilities, finances, employment, or maintaining relationships. Difficulties are not necessarily visible as obvious hyperactivity; some people experience restlessness mainly as an internal sense of being unable to settle.
ADHD in children
Children with ADHD may need more reminders, structure, and support than other children of the same age. They may understand rules but have difficulty applying them consistently, especially when a task is lengthy, repetitive, or not immediately rewarding. School problems can include incomplete work, careless mistakes, missed instructions, or difficulty moving from one activity to another.
Social challenges may also occur. Impulsive comments, interrupting, difficulty taking turns, or strong emotional reactions can affect friendships. These behaviours are not a sign that a child is lazy or deliberately difficult. A supportive approach focuses on clear expectations, practical strategies, and the child’s strengths as well as their challenges.
ADHD in adults
Adults with ADHD may have developed ways to compensate for symptoms during childhood, or their difficulties may become more noticeable when responsibilities increase. Work, higher education, parenting, relationships, and managing a household can place greater demands on planning and time management.
Common adult concerns include procrastination, missed deadlines, disorganisation, forgetfulness, difficulty prioritising, and starting more projects than can be completed. Some adults also report feeling constantly rushed, overwhelmed by routine tasks, or frustrated by inconsistent performance. These experiences can affect confidence, but they do not determine a person’s ability or potential.
What causes ADHD?
The precise causes of ADHD are not fully understood. The condition appears to involve a combination of genetic and environmental influences, and it tends to occur in families. Factors such as premature birth, exposure to certain toxins, and some medical circumstances may also be relevant in particular cases. However, ADHD is not caused by poor parenting, a lack of effort, or a single personal failing.
How ADHD is assessed
There is no single test that confirms ADHD. A healthcare professional considers a person’s symptoms, history, development, and functioning at home, school, work, or in relationships. Information from parents, teachers, partners, or other people who know the individual may be useful, particularly when assessing a child.
Assessment also helps identify other conditions or circumstances that can cause similar difficulties. A professional may therefore ask about sleep, mood, anxiety, learning, medical history, and substance use. Only a qualified healthcare provider can make a diagnosis.
Treatment and practical support
ADHD can be treated and managed, although there is no single approach that works for everyone. A plan may include medication, therapy, behavioural strategies, lifestyle adjustments, or a combination of these. Medication may reduce difficulties with attention, impulsivity, or hyperactivity for some people. Therapy, including cognitive behavioural therapy, can help develop coping skills and address the practical or emotional effects of ADHD.
Helpful everyday strategies may include:
- Using calendars, alarms, written checklists, and visual reminders
- Breaking large tasks into smaller, clearly defined steps
- Creating consistent routines for sleep, meals, school, work, and household tasks
- Reducing distractions during activities that require sustained attention
- Allowing extra preparation time and planning for transitions
- Asking trusted family members, teachers, employers, or friends for practical support
Support should be tailored to the individual’s age, symptoms, health, responsibilities, and goals. If you or someone you know is experiencing ongoing difficulties with attention, impulsivity, activity level, or organisation, discussing them with a healthcare provider is a useful first step. With appropriate support and effective strategies, people with ADHD can manage challenges and pursue fulfilling lives.
Dr. Jonathon Preston is a respected mental health specialist dedicated to helping individuals overcome challenges. With advanced training in psychology and decades of experience in the mental health field.