Image of a neural disease that would cause high-frequency hearing loss.

Do you invest much time considering your nervous system? For the majority of people, the answer would most likely be not that frequently. As long as your body is working as it should, you have no reason to consider how your neurons are firing or whether nerves are sending correct messages along the electrical pathways in your body. But when those nerves begin to misfire – that is when something fails – you begin to pay a lot more attention to your nervous system.

One distinct disease known as Charot-Marie-Tooth Disease which generally affects the extremities can also have a fairly wide-scale affect on the whole nervous system. And there’s some evidence that implies that CMT can also lead to high-frequency hearing loss.

What Is Charcot-Marie-Tooth Disease?

Charcot-Marie-Tooth disease is a set of inherited conditions. The protective sheathing surrounding the nerves fail to function properly due to a genetic disorder.

There is an issue with how impulses travel between your brain and your nerves. A loss in motor function and sensation can be the outcome.

CMT can be present in several variations and a mixture of genetic considerations usually result in its expressions. For most people with CMT, symptoms begin in the feet and go up into their arms. And, strangely, among those who have CMT, there is a higher rate of occurrence of high-frequency hearing loss.

The Cochlear Nerve: A Link Between CMT and Loss of Hearing

There has always been an anecdotal connection between hearing loss and CMT (which means that inside of the CMT community everyone has heard others talk about it). And it was hard to realize the connection between loss of sensation in the legs and problems with the ears.

A scientific study firmly established the connection just recently when a group of scientists examined 79 people with CMT at the University of Iowa Hospitals and Clinics.

The results were rather decisive. Nearly everyone with CMT passed their low and moderate frequency hearing assessments with flying colors. But all of the participants showed hearing loss when it came to the high-frequency sounds (usually around the moderate levels). According to this study, it seems pretty likely that CMT can at least be connected to high-frequency loss of hearing.

What is The Cause of Hearing Loss And How Can it be Treated?

The connection between high-frequency loss of hearing and CMT may, at first, seem puzzling. Like every other part of your body relies on properly functioning nerves. Your ears are exactly the same.

The hypothesis is, CMT impacts the cochlear nerve so noises in the high-frequency range aren’t able to be translated. Some sounds, including some voices, will be hard to hear. Particularly, make out voices in crowded and noisy rooms can be a real challenge.

Hearing aids are commonly used to treat this form of hearing loss. CMT has no renowned cure. Modern hearing aids can provide tremendous help in terms of combating the effects of high-frequency loss of hearing, selecting only those ranges of sounds to boost. The majority of modern hearing aids can also perform well in noisy settings.

There Could be Various Causes For Hearing Loss

Beyond the unconfirmed theory, it’s still not well understood what the link between high-frequency hearing loss and CMT is. But this kind of hearing loss can be efficiently managed using hearing aids. That’s why countless people who have CMT will make time to sit down with a hearing care professional and get a fitting for a custom hearing aid.

There are many causes for hearing loss symptoms. Commonly, it’s a matter of loud noise leading to damage to the ears. In other cases, hearing loss might be the result of an obstruction. It also looks like CMT is another possible cause.

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