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What is “Brain Fog” in ADHD? 

PostedOctober 13, 2025
UpdatedOctober 13, 2025
ByMy Patient Advice
Author: Avery Lombardi, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

ADHD brain fog is a term often used to describe the cognitive difficulties that individuals with ADHD experience, such as concentration problems, lack of focus, and mental fatigue. While brain fog is not a formal medical diagnosis, it’s a common experience for many people with ADHD and can significantly impact their daily life. This feeling of mental cloudiness can make it challenging to complete tasks, follow conversations, or retain information. 

Take an ADHD test

How ADHD Brain Fog Manifests 

Here’s how ADHD brain fog is manifested:  

Concentration Problems  

One of the primary features of ADHD brain fog is difficulty concentrating. Individuals may find it hard to stay focused on one task for an extended period, often becoming easily distracted by external stimuli or their own thoughts. This lack of sustained attention can make it feel like their mind is “drifting” or “foggy.” 

Mental Clarity  

People with ADHD may also experience a lack of mental clarity, which can make it difficult to organise thoughts, solve problems, or make decisions. Tasks that require critical thinking or planning may feel overwhelming or exhausting, leading to frustration or a sense of being mentally drained. 

Forgetfulness and Disorganisation  

ADHD brain fog often leads to forgetfulness, misplacing items, or difficulty recalling important information. This can contribute to organisation problems, as individuals struggle to keep track of appointments, tasks, or deadlines. 

Managing Brain Fog in ADHD 

To combat ADHD brain fog, individuals can adopt strategies like breaking tasks into smaller steps, using reminders, and practising mindfulness to improve focus.  

In conclusion, consistent sleep, exercise, and a balanced diet can also help maintain mental clarity and reduce cognitive fatigue. 

Visit providers like ADHD Certify for personal consultations and expert guidance tailored to your unique situation. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Signs, Symptoms, and Self-identification of ADHD.  

Take an ADHD test
Avery Lombardi, MSc, author for my patient advice - mypatientadvice.co.uk
Avery Lombardi, MSc
Author

Avery Lombardi is a clinical psychologist with a Master’s in Clinical Psychology and a Bachelor’s in Psychology. She has professional experience in psychological assessment, evidence-based therapy, and research, working with both child and adult populations. Avery has provided clinical services in hospital, educational, and community settings, delivering interventions such as CBT, DBT, and tailored treatment plans for conditions including anxiety, depression, and developmental disorders. She has also contributed to research on self-stigma, self-esteem, and medication adherence in psychotic patients, and has created educational content on ADHD, treatment options, and daily coping strategies.

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.