How Hearing Loss May Increase Dementia Risk

While many people think of hearing loss as a normal part of aging, research suggests it may affect more than a person’s ability to hear conversations. Studies have found a connection between hearing loss and an increased risk of cognitive decline and dementia.

June is Men’s Health Month, making it a great time to talk about hearing loss, as it often goes unnoticed. Understanding this connection can help older adults and their families take steps to support both hearing and brain health.

Hearing Loss Is Common Among Older Adults

Age-related hearing loss affects millions of Americans and becomes more common as people get older. According to the National Institute on Deafness and Other Communication Disorders (NIDCD), 22% of adults between the ages 65-74 and 55% of those who are 75 and older have disabling hearing loss. Men are more likely than women to experience hearing loss, often due to years of exposure to loud noises at work, during military service, or through recreational activities.

Because hearing loss usually develops gradually, many people may not realize how much their hearing has changed. Others may avoid seeking help because they believe hearing difficulties are simply a normal part of aging.

However, untreated hearing loss can affect much more than communication.

What Is the Connection Between Hearing Loss and Dementia?

Researchers have identified hearing loss as one of the most significant potentially modifiable risk factors for dementia. While hearing loss does not directly cause dementia, experts believe it may contribute to changes that increase the risk of cognitive decline over time. Several factors may help explain this connection:

Increased Cognitive Load

When hearing becomes more difficult, the brain must work harder to understand sounds and conversations. This extra effort may leave fewer mental resources available for memory, thinking, and other cognitive functions.

Social Isolation and Loneliness

People with hearing loss often find conversations more challenging, especially in noisy environments. Over time, some individuals begin avoiding social situations altogether.

Social engagement plays an important role in brain health, and studies have shown that social isolation may increase the risk of cognitive decline and dementia.

Reduced Sensory Stimulation

The brain relies on regular sensory input to stay active and engaged. When hearing loss reduces the amount of sound reaching the brain, researchers believe it may contribute to changes in the brain regions responsible for memory and thinking.

What Does the Research Say?

A growing body of research supports the link between hearing loss and dementia risk. The 2020 Lancet Commission on Dementia Prevention, Intervention, and Care identified hearing loss as one of the leading modifiable risk factors for dementia.

More recently, researchers involved in the ACHIEVE study, led by Johns Hopkins University, found that treating hearing loss may help slow cognitive decline in some older adults who are at higher risk for dementia.

While researchers continue to study this relationship, these findings reinforce the importance of addressing hearing loss rather than ignoring it.

Why Hearing Screenings Matter

Routine hearing screenings are an important part of healthy aging. Early identification of hearing loss allows individuals to explore treatment options before communication difficulties begin affecting daily life.

Signs that may indicate hearing loss include:

• Frequently asking others to repeat themselves
• Difficulty following conversations in noisy environments
• Increasing the volume on the television or radio
• Trouble hearing on the phone
• Feeling that others are mumbling
• Avoiding social situations because communication feels difficult

If you or a loved one has these symptoms, speak with a healthcare provider or audiologist to schedule a hearing evaluation.

Can Hearing Aids Help?

Hearing aids do more for those who wear them than simply amplify sound. By improving communication and helping individuals stay engaged with family, friends, and community activities, hearing aids can support overall quality of life.

Research suggests that treating hearing loss may help reduce some of the factors associated with cognitive decline, including social isolation and reduced mental stimulation. While hearing aids are not a cure for dementia, they may be an important tool for supporting healthy aging and brain health.

The earlier hearing loss is identified and addressed, the greater the opportunity to maintain communication, independence, and social connections.

Communication Tips for Families

Supporting a loved one with hearing loss can make conversations less frustrating for everyone involved. Consider these communication strategies:

• Face the person when speaking
• Reduce background noise whenever possible
• Speak clearly and at a natural pace
• Gain the person’s attention before beginning a conversation
• Rephrase information rather than simply repeating the same words
• Encourage regular hearing evaluations and use of hearing devices when recommended

Supporting Brain Health Through Better Hearing

Although there is no guaranteed way to prevent dementia, addressing modifiable risk factors may help support long-term cognitive health. Hearing loss is one of those factors.

This Men’s Health Month, consider hearing health as an important part of overall wellness. Regular hearing screenings, prompt treatment of hearing difficulties, and staying socially engaged may benefit not only communication but also brain health.

If you have concerns about hearing loss in yourself, a loved one, or someone you’re caring for, talk with a healthcare professional about available screening and treatment options. Taking steps to protect your hearing today may help support a healthier future.