Do you invest much time thinking about your nervous system? Probably not all that regularly. As long as your body is performing as it should, you’ve no reason to think about how your neurons are firing or whether nerves are sending proper messages along the electrical pathways in your body. But you tend to pay more attention when something fails and the nerves start to misfire.
There’s one particular condition, known as Charcot-Marie-Tooth (CMT) disease, which can affect the nervous system on a pretty large scale, though the symptoms usually manifest mainly in the extremities. high-frequency hearing loss can also be triggered by CMT according to some research.
What Is Charcot-Marie-Tooth Disease?
Charcot-Marie-Tooth disease is a set of inherited conditions. The protective sheathing around the nerves fail to function properly due to a genetic condition.
There is a problem with the way signals travel between your brain and your nerves. A loss of motor function and sensation can be the outcome.
CMT can be found in numerous variations and a mixture of genetic considerations normally lead to its expressions. For the majority of people who have CMT, symptoms begin in the feet and can work their way up into their arms. And, strangely, among those who have CMT, there is a higher rate of occurrence of high-frequency hearing loss.
A Connection Between Hearing Loss And CMT: The Cochlear Nerve
The connection between CMT and hearing loss has always been colloquially recognized (that is, everyone knows someone who has a story about it – at least within the CMT community). And it seemed to mystify people who had CMT – the ear didn’t seem all that related to the loss of feeling in the legs, for example.
The connection was firmly established by a scientific study just recently when a group of scientists examined 79 people with CMT at the University of Iowa Hospitals and Clinics.
The findings were quite decisive. Nearly everyone who has CMT passed their low and moderate frequency hearing exams with flying colors. But all of the participants showed hearing loss when it came to the high-frequency sounds (usually across the moderate levels). high-frequency hearing loss, according to this research, 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 might, at first, seem perplexing. But all of your body, from your toes to your eyebrows, relies on the proper functioning of nerves. Your ears are the same.
The theory 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 difficult to hear. Trying to understand voices in a crowded noisy room is especially difficult.
Hearing aids are usually used to deal with this form of hearing loss. There’s no recognized cure for CMT. Modern hearing aids can isolate the precise frequencies to boost which can offer considerable assistance in battling high-frequency hearing loss. Also, most modern hearing aids can be adjusted to work well inside of noisy settings.
Many Reasons For Hearing Loss
Beyond the untested theory, it’s still not well understood what the link between CMT and high-frequency hearing loss. But this kind of hearing loss can be efficiently treated using hearing aids. That’s why many individuals who have CMT will take the time to sit down with a hearing specialist and get fitted for a custom hearing aid.
Hearing loss symptoms can surface for many reasons. Commonly, it’s a matter of loud sound contributing to damage to the ears. In other situations, loss of hearing could be the consequence of an obstruction. It also looks as if CMT is another possible cause.