Are there biomarkers associated with hyperactivity in ADHD? 

Researchers are increasingly interested in ADHD biomarkers for measurable biological factors that could help diagnose and understand the disorder. So far, evidence suggests there are certain biological markers and hyperactivity indicators that correlate with ADHD symptoms, but no single test is definitive. 

These potential ADHD biomarkers include genetic variations, differences in brain activity patterns, and even levels of specific neurotransmitters. Identifying reliable markers could improve early diagnosis and guide personalised treatment plans, though more research is needed before they become routine clinical tools. 

Promising Biomarkers to Watch 

Below are some of the key biological indicators being explored and how they might inform treatment: 

Dopamine Transporter Levels 

People with ADHD often have altered dopamine transporter density, affecting how the brain processes reward and motivation. Medications like stimulants target this system directly to restore balance. 

EEG Patterns 

Electroencephalograms sometimes reveal unusual brain wave patterns, particularly elevated theta activity, which is linked to inattention and hyperactivity. Neurofeedback therapy has shown promise in modifying these patterns. 

Genetic Variants 

Certain gene variations, such as those in DRD4 and DAT1, are associated with higher ADHD risk and hyperactive behaviour. Understanding these can help tailor behavioural therapies and manage expectations. 

While these hyperactivity indicators are not yet sufficient for diagnosis on their own, they enhance our understanding of ADHD and contribute to the development of more precise and effective care. Visit providers like ADHD Certify for personal consultations and advice on current diagnostic options.

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