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How Do Low Birth Weight and Brain Structure and Function Relate to ADHD Risk?

PostedAugust 18, 2025
UpdatedSeptember 4, 2025
ByMy Patient Advice
Author: Harriet Winslow, BSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Low birth weight can play a significant role in ADHD brain imaging, affecting brain development and increasing the risk of ADHD in later life. Research has shown that children with a low birth weight are more likely to experience disruptions in brain structure and function, which are linked to ADHD cognitive issues such as inattention, impulsivity, and difficulties with executive function. 

The brain development of babies born with low birth weight can be altered, particularly in areas responsible for attention, memory, and impulse control. ADHD brain imaging studies have revealed that children with low birth weight often show abnormalities in brain regions such as the prefrontal cortex, which is crucial for decision-making, planning, and regulating behaviour. These structural changes can contribute to ADHD behaviour, leading to challenges in school and social interactions as the child grows. 

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Common Symptoms of ADHD in Children with Low Birth Weight 

Children born with low birth weight may exhibit a variety of symptoms typically associated with ADHD. These symptoms can affect both their behaviour and their ability to perform everyday tasks. 

Inattention

Children with ADHD often struggle to stay focused on tasks for extended periods and become easily distracted. They may forget instructions or have trouble finishing tasks. 

Impulsivity

Impulsive behaviours, such as acting without thinking, interrupting others, or making hasty decisions, are common.  

Hyperactivity

Restlessness and difficulty sitting still are common symptoms of ADHD in children with low birth weight. These children may fidget constantly or talk excessively, even when it’s not appropriate.  

Difficulty with Executive Function

Children with low birth weight often struggle with executive functions, such as planning, organising, and managing time. This can affect their academic performance and social relationships.  

Visit providers like ADHD Certify for personal consultations and expert advice tailored to your needs.   

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Brain Structure and Function.  

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Harriet Winslow, BSc - My patient advice author - mypatientadvice.co.uk
Harriet Winslow, BSc
Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS, author and a reviewer for my patient advice - mypatientadvice.co.uk
Dr. Rebecca Fernandez, MBBS
Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.