Untreated hearing loss contributes to an increased risk of dementia, though the link between the two is still unclear. Recent studies, however, suggest a likely cause.
Researchers at the University of California San Diego have discovered that hearing loss in older adults is connected to distinct brain changes, increasing the risk of dementia.
- The research team measured hearing ability and used MRIs to view the brain structures of 130 seniors.
- They identified microstructural differences in brain regions responsible for auditory processing, speech-language, and executive function (like focus) in study participants with hearing loss.
- Principal investigator Linda K. McEvoy hypothesized these changes arise from the extra brain effort needed to process sounds.
“These results suggest that hearing impairment may lead to changes in brain areas related to processing of sounds, as well as in areas of the brain that are related to attention. The extra effort involved with trying to understand sounds may produce changes in the brain that lead to increased risk of dementia.” —Linda K. McEvoy, PhD, UC San Diego, Herbert Wertheim School of Public Health
Why It Matters
The evidence is clear: Preserving your hearing is crucial for maintaining brain health and effective communication.
- Wear hearing protection when you’re exposed to loud noise.
- Embrace hearing aids if you have hearing loss.
“The findings emphasize the importance of protecting one’s hearing by avoiding prolonged exposure to loud sounds, wearing hearing protection when using loud tools and reducing the use of ototoxic medications.” —Emilie T. Reas, PhD, UC San Diego School of Medicine
The big picture
Researchers infer the brain adapts to compensate for less sound due to hearing loss. Early treatment with hearing aids, however, restores sound, reducing the risk of dementia.
The takeaway
Don't take your ears for granted. Prioritizing hearing health preserves cognition and communication alike.
Schedule a free hearing screening
Hearing loss is gradual and not benign. Untreated, it increases your risk of social isolation, falling, and dementia.
Check your hearing health with a free, 15-minute hearing screening by an audiologist.
Call 708-599-9500 to schedule yours.
► For facts about hearing loss and hearing aid options, download The Hearing Loss Guide.
Don't let untreated hearing loss threaten your health and happiness.
