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

How frequently do you think 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 think about how your neurons are firing or whether nerves are sending correct messages along the electrical corridors in your body. But you tend to take a closer look when something fails and the nerves start to misfire.

One particular disease known as Charot-Marie-Tooth Disease that generally affects the extremities can also have a pretty wide-scale impact on the overall nervous system. 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 around the nerves fail to function properly due to a genetic disorder.

This means that 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 sensation.

CMT can be present in numerous variations and a combination of genetic factors usually lead to its expressions. For many people who have CMT, symptoms start in the feet and go up into their arms. And, high-frequency hearing loss, strangely, has a high rate of occurrence among those with CMT.

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

There’s always been an anecdotal link between hearing loss and CMT (meaning that inside of the CMT community everyone has heard other people tell stories about it). And it seemed to confuse people who suffered from CMT – the ear didn’t seem very related to the loss of feeling in the legs, for example.

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 results were quite conclusive. Low to moderate frequencies were heard almost 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). high-frequency hearing loss, according to this study, is likely to be linked to CMT.

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. But everything in your body, from your eyebrows to your toes, relies on the correct functioning of nerves. That also goes for your ears.

What the majority of researchers hypothesize occurs is that the cochlear nerve is affected by the CMT – disrupting your ear’s ability to translate and transmit sounds in a high-frequency range. Certain sounds, including some voices, will be difficult to hear. Trying to hear voices in a crowded noisy room is particularly difficult.

This type of hearing loss is usually treated with hearing aids. CMT has no renowned cure. Modern hearing aids can select the exact frequencies to amplify which can offer considerable help in battling high-frequency hearing loss. The majority of modern hearing aids can also work well in noisy environments.

There Could be Many Causes For Hearing Loss

Further than the untested hypothesis, it’s still not well understood what the connection between high-frequency hearing loss and CMT is. But this type of hearing loss can be successfully treated using hearing aids. So scheduling an appointment to get a fitting for hearing aids will be a good choice for individuals who have CMT.

Hearing loss symptoms can surface for several reasons. In some situations, loss of hearing is triggered by undesirable exposure to harmful noises. In other situations, hearing loss could be the result of an obstruction. It appears that CMT can be still another cause of loss of hearing.