There is now evidence that preventing hearing loss may help to slow the decline of someone with dementia or Alzheimer's. The ACHIEVE study published in the Lancet in July 2023 found that older adults with hearing loss who used hearing aids for three years were less likely to experience cognitive decline (slowing down of thinking and memory capabilities) than those who did not use hearing aids.* The study also found that the benefits of using hearing aids were greatest for those who were at higher risk of cognitive decline. Scientists have known for some time that addressing hearing loss can reduce a person’s chances of developing Alzheimer’s, but this is new data to show that hearing aids can slow cognitive decline.

Some of the benefits of improved hearing can lead to:

Improved communication and social interaction: When people with hearing loss can hear better, they are better able to communicate with others and participate in social activities. This can help to reduce isolation and loneliness, which are known to be risk factors for dementia.
Reduced stress: Hearing loss can be a source of stress, and stress can contribute to cognitive decline. When people with hearing loss can hear better, they may experience less stress, which could help to protect their cognitive function.
Increased brain activity: Hearing activates the brain, and it is possible that stimulating the brain through hearing may help to protect against cognitive decline.

If you are concerned about hearing loss, it is important to see an audiologist for a hearing test. If you are diagnosed with hearing loss, there are a number of treatment options available, including hearing aids, cochlear implants, and assistive listening devices. Now in the US, you do not need a prescription for a hearing aid, reducing the barriers and time to getting access to one.

*Source: Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE): a multicentre, randomised controlled trial. Lin FR, Pike JR, Albert MS, et al. Lancet 2023; published online July 18. doi: 10.1016/S0140-6736(23)01406-X

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