Hearing aids are commonly prescribed to improve hearing, but recent research indicates they might also play a role in safeguarding brain health among specific groups.
Researchers have found that adults with both epilepsy and hearing loss who wear hearing aids seem less likely to develop dementia compared to those with hearing loss who do not use them. These findings were shared at the European Academy of Neurology Congress 2026 by scientists from University Hospital Zurich and the University of Liverpool.
Dementia impacts memory, cognition, language, and the ability to perform daily activities. While aging is the primary risk factor, several other factors can influence risk levels. Hearing loss stands out as a significant modifiable risk factor—meaning it can potentially be addressed. Despite this, past studies have offered mixed results regarding whether hearing aids actually reduce the likelihood of developing dementia.
To delve deeper, researchers analyzed anonymized electronic health records from the TriNetX database, which encompasses data on more than 250 million patients. They compared those with hearing impairment who used hearing aids to carefully matched individuals who did not. The study focused on the broader hearing-impaired population and specific high-risk groups, including individuals with stroke, heart failure, chronic kidney disease, migraines, type 2 diabetes, osteoarthritis, and epilepsy.
While most groups didn’t show a significant reduction in dementia risk linked to hearing aid use, individuals with epilepsy stood out. Those with epilepsy who used hearing aids had a 23% lower chance of developing dementia over five years. This could mean that for every 37 epilepsy patients using hearing aids, one case of dementia might be prevented.
Scientists suggest that epilepsy may increase vulnerability because many patients already have decreased cognitive reserve—meaning their brains have less capacity to handle additional stress. Untreated hearing loss causes the brain to work harder to process sounds, leaving fewer resources for memory and reasoning. Restoring hearing through aids could alleviate some of this strain, especially in individuals with already compromised brains.
This research also has practical implications because hearing tests are simple, affordable, and accessible. Given that epilepsy patients often see neurologists and healthcare providers regularly, incorporating routine hearing screenings could become a standard part of their care. Detecting hearing loss early and providing aids might improve quality of life, regardless of potential effects on dementia risk.
The researchers emphasized caution, noting that this was an observational study—not a randomized clinical trial—so it cannot definitively prove that hearing aids cause a reduction in dementia risk. Further prospective studies are necessary to determine whether hearing aids directly contribute to brain health preservation.
Overall, these findings suggest that individuals with epilepsy should pay attention to hearing health. While more research is needed, early detection and treatment of hearing problems could become essential strategies for maintaining communication skills and long-term cognitive health.
For those interested in dementia prevention, recent studies also explore how eating apples and drinking tea could help keep dementia at bay, as well as the brain benefits of daily olive oil intake. Additional health insights include how certain foods could influence dementia risk and how time-restricted eating might combat aging and cancer.
Source: University Hospital Zurich and University of Liverpool.