Hearing Aids Linked to Lower Dementia Risk in People with Epilepsy, Study Finds
A large-scale study presented at the European Academy of Neurology (EAN) Congress 2026 has revealed a significant link between hearing aid use and reduced dementia risk in a specific patient group.
Adults with both epilepsy and hearing loss who use hearing aids have a 23% lower risk of developing dementia compared to those who do not use hearing aids.
The analysis, which drew on electronic health records from over 250 million patients in the TriNetX network, compared adults with hearing loss who used hearing aids against closely matched adults who did not. Researchers examined the general hearing-loss population alongside subgroups with various pre-existing conditions.
Key Findings: A Specific Link
- No significant association was found in the overall hearing-loss population.
- No significant link was found among people with stroke, migraine, type 2 diabetes, chronic kidney disease, heart failure, or osteoarthritis.
- In the epilepsy subgroup, hearing aid use was associated with a 23% lower dementia risk, translating to an absolute risk reduction of 2.7 percentage points over five years.
Possible Explanation
Researchers suggest the finding may relate to reduced cognitive reserve in people with epilepsy, making the correction of hearing loss more impactful for preserving cognitive function.
Important Caveat
The study was observational and cannot prove causation. While it shows a strong association, it does not confirm that hearing aids directly prevent dementia.