Untreated Hearing Loss and Dementia: How are They Connected?
Actively maintaining your health becomes increasingly important as you age, and that includes maintaining your brain health. As you get older, your risk for developing conditions like dementia and Alzheimer’s disease increases. In addition to age itself, hearing loss is also associated with an increased risk in developing dementia.
Let’s take a closer look at the connection between hearing loss and dementia:
Hearing Loss Strains Your Brain
When you experience hearing loss, it may put extra stress on your brain. The brain has to work harder to understand and memorize details during conversations and presentations. This added stress may increase your risk of dementia.
Hearing Loss Leads to Isolation
Hearing loss can often lead to someone withdrawing from social situations and interactions with loved ones. The isolation and lack of stimulation can not only lead to depression, but it might also decrease activity in your brain and contribute to your risk of dementia.
Hearing Loss Accelerates Atrophy
It’s natural for your brain to atrophy, or shrink, to a certain extent as you age. It’s possible that hearing loss can accelerate and potentially exacerbate the extent to which your brain atrophies.
Signs of Hearing Loss
It’s important to recognize the signs and symptoms of hearing loss so you can consider treatment as soon as possible. Symptoms include:
- Difficulty understanding conversations, especially in public
- Trouble recalling details from conversation
- Asking people to repeat themselves
- Turning up the volume on the television
The symptoms of hearing loss can be uncomfortable and should be discussed with the hearing healthcare professionals at %practice_name% once you notice them.
Reducing Your Risk for Dementia
While you cannot control risk factors like age and genetics, you can take steps to limit other risk factors for dementia. Here are some actions you can take:
- Avoid activities like smoking and excessive drinking
- Treat any common comorbidities of dementia you may have such as obesity, high blood pressure, and diabetes
- Participate in regular physical activities
- Keep your brain stimulated with intellectual activities
Having your hearing checked and potentially treating existing hearing loss is also a critical step to help you to lower your risk. Studies have shown that using hearing aids to treat hearing loss might reduce your risk of developing dementia in your lifetime.
%practice_name% is proud to provide hearing healthcare services to %target_city_1%, %target_city_2%, and %target_city_3%. If you or someone you know is experiencing hearing loss, contact our office today to discuss how we can help you hear better.
Age is Not the Only Risk Factor for Dementia
Dementia is the term used to describe the loss of memory and ability to make decisions and think. It can also impact your personality and your emotional control. Alzheimer’s is the most common form of dementia, accounting for 60-80% of cases. Dementia and types of dementia are most common among adults over age 65, but age is not the only contributor to developing dementia. Other risk factors include genetics, heart health, and hearing loss. People with hearing loss are up to five times more at risk for developing dementia.
The Connection the Research Has Found
Researchers at Johns Hopkins have been studying the relationship between hearing loss and cognitive decline for more than a decade. What they found is significant: people with moderate untreated hearing loss have roughly three times the risk of developing dementia compared to people with normal hearing. Those with severe untreated hearing loss face an even higher risk.
This does not mean that hearing loss causes dementia. The relationship is more complicated than that. But it does mean the two are meaningfully connected, and scientists have several theories as to why.
Why Hearing and Brain Health Are Linked
One leading explanation is cognitive load. When your hearing is impaired, your brain works much harder to fill in the gaps during every conversation. Resources that would normally go toward memory, attention, and processing get redirected toward the effort of just hearing. Over time, that constant strain may contribute to cognitive fatigue and decline.
Another theory involves social isolation. People with untreated hearing loss often withdraw from conversations and social situations because they are too difficult to follow. Social isolation is independently associated with a higher risk of cognitive decline.
A third possibility involves what researchers call auditory deprivation — the brain receiving fewer meaningful sound signals over time, which may contribute to structural changes in areas involved in memory and language.
What This Means for You or Your Parent
The important word in the research is “modifiable.” Unlike age or genetics, hearing health is something you can act on. Studies suggest that treating hearing loss — most commonly with hearing aids — may reduce or delay the associated cognitive risks.
A 2023 study published in The Lancet found that hearing aids significantly reduced cognitive decline in older adults at higher risk. The finding added momentum to the growing scientific consensus that hearing care is brain care.
How Hearing Aids Help Protect the Brain
Wearing hearing aids can reduce the cognitive load caused by struggling to hear. By amplifying sounds and enhancing clarity, hearing aids allow the brain to process auditory information more efficiently. This frees up mental resources for memory, problem-solving, and other essential cognitive tasks.
Moreover, hearing aids can restore confidence in social settings, encouraging people to stay engaged with friends and family. Social interaction stimulates the brain, helping to preserve cognitive function over time.
Scientific Backing
Research consistently supports the connection between hearing aids and better brain health. A major study found that older adults who used hearing aids experienced significantly slower rates of cognitive decline compared to those who left hearing loss untreated. The evidence suggests that hearing aids can be a valuable tool in maintaining long-term mental sharpness.
