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Researchers Explain Link Between Hearing Loss & Dementia

September 30, 2020/in Ear wax removal Devon, Earwax removal, Exeter hearing aids /by admin

Researchers Explain Link Between Hearing Loss & Dementia

   

Researchers Explain Link Between Hearing Loss, Dementia

Hearing loss has been shown to be linked to dementia in epidemiological studies and may be responsible for a tenth of the 47 million cases worldwide.

Now, published in the journal Neuron, a team at Newcastle University provide a new theory to explain how a disorder of the ear can lead to Alzheimer’s disease—a concept never looked at before. An article summarising the results of the research appears on the University’s website.

It is hoped that this new understanding may be a significant step towards advancing research into Alzheimer’s disease and how to prevent the illness for future generations.

Key Considerations

Newcastle experts considered three key aspects; a common underlying cause for hearing loss and dementia; lack of sound-related input leading to brain shrinking; and cognitive impairment resulting in people having to engage more brain resources to compensate for hearing loss, which then become unavailable for other tasks.

The team propose a new angle which focuses on the memory centers deep in the temporal lobe. Their recent work indicates that this part of the brain, typically associated with long-term memory for places and events, is also involved in short-term storage and manipulation of auditory information.

They consider explanations for how changes in brain activity due to hearing loss might directly promote the presence of abnormal proteins that cause Alzheimer’s disease, therefore triggering the disease.

Professor Tim Griffiths, from Newcastle University’s Faculty of Medical Sciences, said: “The challenge has been to explain how a disorder of the ear can lead to a degenerative problem in the brain.

“We suggest a new theory based on how we use what is generally considered to be the memory system in the brain when we have difficulty listening in real-world environments.”

Collaborative Research

Work on mechanisms for difficult listening is a central theme for the research group, including members in Newcastle, UCL, and Iowa University, that has been supported by a Medical Research Council program grant.

Dr Will Sedley, from Newcastle University’s Faculty of Medical Sciences, said: “This memory system engaged in difficult listening is the most common site for the onset of Alzheimer’s disease.

“We propose that altered activity in the memory system caused by hearing loss and the Alzheimer’s disease process trigger each other. Researchers now need to examine this mechanism in models of the pathological process to test if this new theory is right.”

The experts developed the theory of this important link with hearing loss by bringing together findings from a variety of human studies and animal models. Future work will continue to look at this area.

Original Paper: Griffiths TD, Lad M, Kumar S, et al. How can hearing loss cause dementia? Neuron. 2020;108.1-12.

Source: Newcastle University, Neuron

https://honiton-hearing.co.uk/wp-content/uploads/2019/03/Honiton-hearing-aids-Devon-2019.jpg 360 640 admin https://honitonnew.leecurran.co.uk/wp-content/uploads/2018/03/honitonhearinglogo.png admin2020-09-30 18:23:362020-09-30 18:23:36Researchers Explain Link Between Hearing Loss & Dementia

Loud Music Can Lead to Early Signs of Hearing Damage

September 21, 2020/in Hearing loss, News /by admin

BBC Looks at How Loud Music Can Lead to Early Signs of Hearing Damage

 

BBC Looks at How Loud Music Can Lead to Early Signs of Hearing Damage

Those who frequently attend loud concerts and music events may be more likely to have earlier signs of hearing damage according to an article in BBC Science Focus Magazine.

The article examined a study from researchers at the University of Manchester, which suggests that although the damage observed is not enough to be diagnosed as a full-blown hearing loss, it could potentially have a cumulative effect on hearing later in life. Out of the 123 people tested, researchers found that those exposed to loud music had less functional hair cells.

To prevent this kind of damage, the researchers suggest avoidance of noisy situations, reduction of volume, or the use of hearing protection such as earplugs or earmuffs.

To read the article in its entirety, click here for the BBC Science Focus website.

Source: BBC Science Focus Magazine

https://honiton-hearing.co.uk/wp-content/uploads/2020/09/Honiton-hearing-.jpg 358 500 admin https://honitonnew.leecurran.co.uk/wp-content/uploads/2018/03/honitonhearinglogo.png admin2020-09-21 09:26:342020-09-21 09:26:34Loud Music Can Lead to Early Signs of Hearing Damage

1 in 6 UK adults suffer hearing loss

September 8, 2020/in News, Uncategorized /by admin
BIHIMA Survey Finds 1 in 6 UK Adults Have Hearing Loss

1 in 6 UK adults suffer hearing loss and, on average, they believe they should have their hearing tested every 2-3 years, yet most of us only have our hearing tested once a decade!

In a recent survey of 2,000 UK adults, commissioned by the British Irish Hearing Instrument Manufacturers Association (BIHIMA) and announced on its website, 16% of respondents self-reported suffering from hearing loss, with men being nearly twice as likely to suffer as women: 1 in 5 men reported suffering from hearing loss compared to 1 in 10 women.

These UK figures are significantly higher than the 1 in 9 Europeans with self-reported hearing loss, according to the latest Eurotrak report.

Eleven percent of 16-24 year olds surveyed say they too suffer hearing loss. This figure doubles to 22% in the over 55 age group. This revelation comes as no surprise as we are familiar with the concept that hearing can deteriorate with age.

Hearing loss compounds feelings of isolation and loneliness which can affect the lives of sufferers. As with loss of vision, identifying and treating hearing loss can improve an individual’s quality of life.

Nearly half of those who say they have a hearing loss claim to wear hearing instruments according to BIHIMA’s UK 2018 Eurotrak study, leaving over 50% not taking advantage of available technology. This problem could be managed with regular visits to an audiologist, according to BIHIMA.

BIHIMA Chairman, Paul Surridge comments on the survey’s findings: “Not everyone notices a decline in their hearing. It’s often a relative or family friend that raises the subject. We know hearing loss can have a detrimental effect on people’s mental health and the way they live their lives. As a society, we need to encourage everyone to have regular hearing tests and, when appropriate, be fitted with life changing hearing instruments to prevent unnecessary suffering.”

BIHIMA advises people to get their hearing tested every three years, and annually after the age of 55.  Just as we visit the optician and dentist regularly, our hearing should also be valued and protected.

Research and Methodology:

The research was conducted by Censuswide across 2,000 UK adults. It was completed in February 2020, but publication was delayed due to the coronavirus outbreak. www.censuswide.com

Source: BIHIMA

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