Could memory loss be early dementia mistaken as ADHD? 

If you’re noticing frequent memory lapses, it’s natural to wonder whether the cause is ADHD or something more serious like early dementia. Both conditions can share symptoms like forgetfulness, disorganisation, and distraction which makes the dementia vs ADHD distinction crucial, especially in adults. 

ADHD is a neurodevelopmental condition present from childhood, while dementia is a progressive cognitive decline typically linked to ageing. However, because ADHD often goes undiagnosed until adulthood, its symptoms, especially in later life can be misinterpreted as signs of early dementia. Likewise, misdiagnosis in either direction can delay the right treatment and support. 

Key differences between ADHD and dementia-related memory loss 

Here’s how to spot the differences between memory lapses caused by ADHD versus early dementia: 

Symptom onset  

ADHD symptoms are typically lifelong, even if they worsen or change with age. Dementia symptoms usually begin later in life and progressively worsen over time. 

Type of memory affected  

People with ADHD often struggle with working memory forgetting tasks, misplacing items, or losing focus. Dementia is more likely to affect long-term memory, such as forgetting names of close relatives or recent life events. 

Response to structure and prompts  

ADHD-related forgetfulness often improves with external cues, reminders, or structured routines. Dementia symptoms are less responsive to such strategies and tend to progress regardless of interventions. 

In conclusion, if you’re concerned about whether your memory lapses are due to dementia vs ADHD, a full clinical assessment is essential.  

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 Zoning out & Forgetfulness in ADHD.