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

Do you spend much time thinking about your nervous system? Probably not all that frequently. As long as your body is performing in the way that it should, you’ve no reason to consider how your neurons are firing or whether nerves are sending proper messages along the electrical pathways in your body. But when those nerves start to misfire – that is when something fails – you tend to pay a lot more attention to your nervous system.

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

What Is Charcot-Marie-Tooth Disease?

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

As a result, the impulses sent from your brain to those nerves (and from those nerves back to your brain) don’t work all that well. Functionally, this can cause both a loss in motor function and a loss of feeling.

A combination of genetic factors usually leads to the manifestation of symptoms, so CMT can be found in several varieties. For most people with CMT, symptoms start in the feet and go up into their arms. And, high-frequency hearing loss, strangely, has a high rate of occurrence in those with CMT.

A Connection Between Loss of Hearing And CMT: The Cochlear Nerve

The connection between CMT and hearing loss has always been colloquially supported (that is, everybody knows somebody who has a tells about it – at least within the CMT culture). And it was tough to grasp the connection between loss of sensation in the legs and problems with the ears.

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

The findings were rather conclusive. Low to moderate frequencies were heard nearly perfectly by those who had CMT. But all of the participants showed loss of hearing when it came to the high-frequency sounds (usually across the moderate levels). According to this research, it seems pretty likely that CMT can at least be connected to high-frequency loss of hearing.

The Cause of Hearing Loss and How to Deal With It

The link between high-frequency loss of hearing and CMT could, at first, seem puzzling. Like all other parts of your body rely on correctly functioning nerves. Your ears are no different.

The theory is, CMT affects the cochlear nerve so sounds in the high-frequency range aren’t able to be translated. Anyone with this form of hearing loss will have a hard time hearing some sounds, including voices. Trying to hear voices in a crowded noisy room is especially difficult.

Hearing aids are commonly used to deal with this type of hearing loss. There’s no known cure for CMT. Modern hearing aids can provide considerable assistance in terms of combating the effects of high-frequency loss of hearing, selecting only those ranges of sounds to amplify. In addition, most modern hearing aids can be calibrated to work well in noisy settings.

There Can be Various Causes For Hearing Loss

Further than the unconfirmed theory, it’s still uncertain what the link between high-frequency hearing loss and CMT is. But hearing aid technology provides a clear treatment for the symptoms of that loss of hearing. So scheduling an appointment to get fitted for hearing aids will be a smart choice for individuals who suffer from CMT.

There are many causes for hearing loss symptoms. Often, it’s a matter of loud sound causing damage to the ears. In other circumstances, hearing loss might be the consequence of an obstruction. It turns out that CMT can be still another cause of hearing loss.

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