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

Do you spend much time considering your nervous system? Most likely not all that frequently. As long as your body is working as it should, you’ve no reason to think about 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 tend to pay much more attention to your nervous system.

There’s one particular disease, called Charcot-Marie-Tooth (CMT) disease, which can impact the nervous system on a relatively large scale, though the symptoms usually manifest mainly in the extremities. high-frequency hearing loss can also be triggered by CMT according to some evidence.

Charot-Marie-Tooth Disease, What is it?

Charcot-Marie-Tooth disease is a set of inherited conditions. In essence, these genetic disorders cause something to go wrong with your nerves or with the protective sheathing surrounding your nerves.

There is an issue with the way signals move between your brain and your nerves. A loss in motor function and sensation can be the result.

A combination of genetic elements usually leads to the appearance of symptoms, so CMT can be present in a few variations. Symptoms of CMT usually start in the feet and go up to the arms. And, high-frequency hearing loss, strangely, has a high rate of occurrence among those who have CMT.

A Link Between Hearing Loss And CMT: The Cochlear Nerve

The link between CMT and loss of hearing has always been colloquially established (that is, everyone knows someone who has a tells about it – at least within the CMT community). And it was difficult to recognize the link 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 researchers evaluated 79 people with CMT at the University of Iowa Hospitals and Clinics.

The findings were rather conclusive. Nearly everyone who has CMT passed their low and moderate frequency hearing tests with flying colors. But all of the individuals showed hearing loss when it came to the high-frequency sounds (usually across the moderate levels). Based on this study, it seems pretty likely that CMT can at least be associated with high-frequency hearing loss.

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

The link between high-frequency loss of hearing and CMT could, at first, seem perplexing. But all of your body, from your toes to your eyebrows, relies on the correct functioning of nerves. That also goes for your ears.

What most researchers hypothesize occurs is that the cochlear nerve is impacted by the CMT – interfering with your ear’s ability to interpret and convey sounds in a high-frequency range. Certain sounds, including some voices, will be difficult to hear. Particularly, make out voices in crowded and noisy rooms can be a tangible obstacle.

Hearing aids are commonly used to manage this type of hearing loss. CMT has no known cure. Modern hearing aids can select the precise frequencies to amplify which can provide significant assistance in combating high-frequency hearing loss. The majority of modern hearing aids can also do well in noisy environments.

Many Causes of Hearing Loss

Researchers still aren’t entirely certain why CMT and loss of hearing seem to co-exist quite so often (beyond their untested theory). But hearing aid tech provides an obvious solution to the symptoms of that hearing loss. So making an appointment to get a fitting for hearing aids will be a good decision for people who suffer from CMT.

There are numerous causes for hearing loss symptoms. Often, it’s an issue of loud sound contributing to damage to the ears. In other circumstances, hearing loss might be the result of a blockage. It also looks as if CMT is another possible cause.