Hearing loss is about twice as common in adults with diabetes compared to those who do not have the disease, according to a study funded by the National Institutes of Health (NIH) and published in the Annals of Internal Medicine. Yet hearing screenings typically are not part of the regular regimen of care that people with diabetes are routinely recommended to receive.
The NIH-funded study found a strong and consistent link between hearing impairment and diabetes. The link between diabetes and hearing loss was evident across all frequencies, with a stronger association in the high frequency range. And an association between diabetes and hearing impairment was evident as early as ages 30 to 40.
Adults with pre-diabetes, whose blood glucose is higher than normal but not high enough for a diabetes diagnosis, had a 30 percent higher rate of hearing loss compared to those with normal blood sugar tested after an overnight fast.
Diabetes may lead to hearing loss by damaging the nerves and blood vessels of the inner ear, the study researchers suggest. Autopsy studies of diabetes patients have shown evidence of such damage.
People with diabetes can take a quick and confidential online hearing test today, at www.hearingcheck.org, to determine if they need a comprehensive hearing check by a hearing professional.
Source: International Diabetes Federation
Diabetes is a chronic, potentially debilitating and often fatal disease. The disease occurs as a result of problems with the production and supply of insulin in the body. Either the body produces no or insufficient insulin (type 1 diabetes), or the body cannot use the insulin it produces effectively (type 2 diabetes). Insulin is a hormone made by the pancreas that helps “sugar” (glucose) to leave the blood and enter the cells of the body to be used as “fuel.”
There are two main types of diabetes. Type 1 diabetes is sometimes called insulin-dependent, immune-mediated or juvenile-onset diabetes. It is caused by an auto-immune reaction where the body’s defense system attacks the insulin-producing cells. The reason why this occurs is not fully understood. People with type 1 diabetes produce very little or no insulin. The disease can affect people of any age, but usually occurs in children or young adults. People with this form of diabetes need injections of insulin every day in order to control the levels of glucose in their blood. If people with type 1 diabetes do not have access to insulin, they die.
Type 2 diabetes is sometimes called non-insulin dependent diabetes or adult-onset diabetes. People with type 2 diabetes do not usually require injections of insulin. Usually, they can control the glucose in their blood by watching their diet, taking regular exercise, oral medication, and possibly insulin. Type 2 diabetes is most common in people older than 45 who are overweight. However, as a consequence of increased obesity among the young, it is becoming more common in children and young adults. Type 2 diabetes is the most common type of diabetes and accounts for 90 to 95 percent of all diabetes. If people with type 2 diabetes are not diagnosed and treated, they can develop serious complications, which can result in an early death.
Worldwide, many millions of people have type 2 diabetes without even knowing it. Others do not have access to adequate medical care. The onset of type 2 diabetes is also linked to genetic factors but obesity, physical inactivity and unhealthy diet increase the risks.
Some women develop a third, usually temporary, type of diabetes called “gestational diabetes” when they are pregnant. Gestational diabetes develops in two to five percent of all pregnancies, but usually disappears when the pregnancy is over. Women who have had gestational diabetes have an increased risk of developing type 2 diabetes later on.