Iron and Hearing Loss

An important new study reveals a tantalizing new clue about hearing loss.

Iron deficiency anemia (IDA) has been linked to hearing loss in a major study conducted by researchers at Penn State’s Milton S. Hershey Medical Center.

They studied over 300,000 people, ranging from the young to the elderly. Among the findings, the risk of sensorineural hearing loss was 82% higher among those with low iron levels in their blood.

Your bone marrow needs iron to produce hemoglobin for the red blood cells that carry oxygen throughout the body.  Iron deficiency can cause symptoms ranging from fatigue to muscle weakness and maybe, just maybe, play a role in hearing loss.

But the study’s lead author, Kathleen P. Schieffer, emphasizes that, “Our study does not say that iron deficiency causes hearing loss, but only that there is a link between the two.”

She also does not recommend that anyone take iron supplements without first consulting a doctor.

The reason for the link is unknown but one theory is gaining ground.  We know from animal studies that iron deficiency reduces the flow of hemoglobin to the cochlea and that the auditory nerve cells need a lot of oxygen.

The report concludes that “further research is needed to better understand the potential links between IDA and hearing loss and whether screening and treatment of IDA in adults could have clinical implications in patients with hearing loss”.

Stanford University & Hope for a Hearing Loss Cure

“In the last five years the pharmaceutical industry has woken up and there are now about 30 biotech companies right now focused on finding a cure for some forms of hearing loss.” – Prof. Stefan Heller

It may well be the most comprehensive and ambitious research program of its kind and the Stanford Initiative to Cure Hearing Loss (SICHL) mission statement reflects that:

“The goal of the Stanford Initiative to Cure Hearing Loss is to devise treatments that repair the damaged ear and restore lost hearing, quiet tinnitus, and improve balance.”

How far have they come toward achieving that goal? Continue reading “Stanford University & Hope for a Hearing Loss Cure”