A Link between Hearing Loss & Diabetes

A Link between Hearing Loss & Diabetes

Dr. Marina E. Kade Hearing Health, Hearing Loss, Hearing Loss Treatment

Dr. Marina E. Kade

Diabetes has long been linked to hearing loss, but new research strongly prompts hearing health professionals to recommend regular hearing tests for diabetes patients. Carried out by the National Institutes of Health, the study found that hearing loss is about twice as likely among people with diabetes as in the general population. With nearly 30 million adults in the United States diagnosed as diabetic and another 84 million qualifying as pre-diabetic, the strong connection between the two health conditions isn’t to be taken lightly.


What is diabetes?

Of particular concern is the jump in diabetic Americans in the last decade. Over the last ten years, reported cases of diabetes have more than doubled. The alarming rise of this severe health condition is a global concern, too. The World Health Organization predicts that more than 380 million cases of diabetes will double by the year 2030. 

Diabetes itself affects the way the body processes insulin. When functioning at normal levels, the body turns food into sugars, or glucose, at which point the pancreas releases insulin. The insulin opens the cells, allowing the glucose to enter and be processed as the energy that fuels the human body. Diabetes stops that process by either not producing insulin or not producing enough to open the cells and turn glucose into energy.


Types of diabetes

The two most common types of diabetes are Type 1 and Type 2, although other forms exist. People with Type 1 diabetes have an insulin system that malfunctions by mistaking insulin-producing cells in the pancreas as foreign agents and destroying them. Without these cells, the energy from caloric intake cannot be processed. 

Type 2 diabetes is much more common. People with this condition can produce some insulin, but it’s often insufficient. Sometimes, cells don’t respond to the insulin produced, which is called insulin resistance. 


Who is at risk?

Medical professionals aren’t entirely sure what causes Type 1 diabetes, although it is regarded as the more severe condition. If left untreated, the blood sugars in people with this type of diabetes get dangerously high and can damage the eyes, kidneys, nerves and the heart. It can also lead to coma or death in extreme cases. 

Type 2 diabetes is often attributed to a sedentary lifestyle and obesity. Current treatment most likely focuses on diet and exercise. If blood sugar levels remain too high, medications can be introduced to help the body use its insulin more effectively, or insulin injections are prescribed. 


How could diabetes damage hearing health?

Because diabetes interacts so closely with cellular health, it is possible that the resulting high blood glucose levels associated with diabetes cause damage to the small blood vessels in the inner ear. This is similar to how a buildup of too much glucose in the body will damage the eyes or kidneys. 

Our auditory systems rely heavily on healthy blood vessels in the inner ear, which are extremely sensitive to blood flow. Inadequate blood flow or trauma to these vital nerves and cells can damage healthy hearing.


Be on the lookout

Because the inner ear is so sensitive to blood flow, regular hearing tests can reveal much about the general health of the cardiovascular system. Irregularities or slight fluctuations in hearing may even be the first place that signs of restricted or abnormal blood flow appear in the body. Diabetes complicates this just enough to ensure that people with the condition should make it a point to closely monitor their hearing health because we know the danger is already present. 


Intervention when necessary

Self-diagnosis of hearing loss is tricky because the signs can be so subtle. While diabetes in our modern world is often a very manageable condition, the extent of hearing loss is likely irreversible beyond the stage that intervention is enacted. The best way to maintain optimum hearing health is to catch any decline in its earliest stages. 

Visit us for a thorough conversation and a comprehensive hearing test. Hearing tests are a significant first step in determining if hearing loss is present in your life and the best route to take to minimise its impact.