Hearing loss and dementia

Author thumbnail Marta Silva  |  Published 13 September 2024  | Updated 02 October 2024  | 6 mins read

A sad senior woman sitting at home, gazing off into the distance with a contemplative expression, appearing lost in thought.

Did you know that hearing loss can involve more than simply not hearing as well? Other than just needing to turn the TV volume up, hearing loss has also been linked to other issues, such as problems with balance, walking difficulties, and even cognitive decline. In this article, we explore the relationship between hearing loss and dementia and provide useful information for those affected or at risk. 

What is hearing loss?

Hearing loss is characterised as an impairment to detect certain sounds, pitches, and/or loudness which leads to an increased difficulty in processing sounds. It can be classified as mild, moderate, severe or profound and has many different types. The types of hearing loss are sensorineural, conductive, and mixed hearing loss and their causes can range from ageing to noise exposure, infections to genetics and more. Hearing loss can start at any age and may be present from birth (congenital hearing loss), but it’s more prominent from the age of 55. In fact, half of the world’s population over 55 years-old has hearing loss.

What is dementia?

Dementia is an umbrella term for loss of memory, language, problem-solving and other thinking abilities that are severe enough to interfere with daily life. There are many different types of dementia, and it is different from normal age-related cognitive decline. It can be caused by a variety of diseases that cause damage to brain cells, and different types of dementia are associated with different brain cell damage in particular regions of the brain. 

Risk factors for developing dementia include:

  • Ageing
  • Genes
  • Sex
  • Cognitive reserve
  • Ethnicity
  • Health conditions and diseases
  • Lifestyle factors

Is there a link between hearing loss and dementia?

In a study about the link between hearing loss and dementia, it was found that having hearing loss increases your risk of developing dementia. It may also be one of the early symptoms of dementia. 

Untreated hearing loss can lead to social isolation, reduced communication, and less cognitive stimulation. It can also impact a person’s cognitive load – straining to hear things and people might negatively impact memory and thinking skills. People with hearing problems may also be more likely to withdraw from social situations and become isolated. Social isolation and depression are both risk factors for dementia.

How to tell the difference between hearing loss and dementia symptoms

There are many symptoms of hearing loss, and they can cross over with some of the symptoms of dementia, so it’s worth keeping an eye out for a combination of the following symptoms to get medical assistance as quickly as possible.

An old man holding his ear and appearing to be in pain.

Symptoms of hearing loss:

  • Difficulty hearing and understanding – Struggling to hear and understand conversations, especially in noisy environments, and asking people to repeat themselves or speak up.
  • Listening at higher volumes – If you cannot hear at lower levels, you might need to turn up the volume on the TV, radio, or other devices.
  • Phone communication – A difficulty hearing on the phone.
  • Social and emotional fatigue – Feeling tired or stressed from concentrating harder during more challenging situations or environments with groups and background noise. This can also lead to social withdrawal due to the lack of confidence in perceiving conversations around you and might impact enjoying activities with family, friends, or co-workers.
  • Physical symptoms – Ringing, buzzing, or whistling sounds in the ears (tinnitus), sudden hearing loss, dizziness, vertigo, or a sensation of numbness or fullness in the ear.
A retired couple holding hands and looking at each other with expressions of confusion while sitting together at home.

Common symptoms of dementia:

  • Memory loss.
  • Difficulty concentrating.
  • Difficulty carrying out familiar daily tasks, such as getting confused over the correct change when shopping.
  • Struggling to follow a conversation.
  • Having difficulty finding the right word.
  • Being confused about time and place.
  • Mood changes.

If you or a loved one experiences a combination of these symptoms, especially if they come on suddenly or after hitting your head, ensure you seek medical help immediately. 

Can you prevent hearing loss and dementia

It’s not always possible to prevent hearing loss and dementia, especially if they are linked to genetics. But there are some precautions you can and should take to protect your hearing, which, in turn, can help lower your risk of dementia. Early intervention and taking care of your hearing health are essential to your overall cognitive health management.

  • Avoid loud noises – regular or prolonged exposure to sounds that are 85 decibels or louder can permanently damage your hearing. You can protect yourself from harmful noise levels by turning down the volume, wearing earplugs, walking away from loud noises, or taking short 5-10 minute breaks from loud sounds.
  • Be conscious of medicines – certain medicines, such as high doses of aspirin, can impair your hearing. Make sure you always read the side effects. Seek advice from your GP, consultant, or medical professional who has prescribed the medication.
  • Know your family history – Some hearing impairments can be hereditary, so knowing your family history can help to protect your hearing. Find out if there’s any history of hearing loss in your family, as your genetic makeup can make you more susceptible to hearing loss.
  • Get your hearing checked regularly – Whether you’re prone to hearing loss, have underlying hearing issues or work in a noisy environment, it’s a good idea to schedule regular checkups to help prevent further loss. Just like your eyes, you should get your ears checked regularly – every 2-5 years if there’s no family history of hearing loss or once a year if there is family history. 

How to cope with hearing loss and dementia

Developing hearing loss and dementia can be difficult and scary, but with the proper care and support, you or those you love needn’t feel isolated or scared.

Hearing loss treatments

No matter whether your hearing loss is mild or profound, many treatment options are available to help you regain some level of hearing and improve your quality of life. Hearing aids, cochlear implants, and communication strategies are all available options, with hearing aids being the most popular, easily accessible, and effective options.

Dementia management and support

There isn’t a one-size-fits-all treatment for dementia, as several different factors and diseases can cause it. Additionally, as it is often degenerative, it’s not a curable condition. However, there are some management and support options available for those affected. Medications, cognitive therapies, and lifestyle changes can also help with dementia symptoms. Ensuring you have a solid network of caregivers and support networks can be invaluable to those with dementia.

If you suspect that you or a loved one has dementia, make sure you see your GP as soon as possible.