Why is iron-deficiency anemia linked to hearing loss?

  Posted March 4, 2019

Iron helps blood cells carry oxygen from the lungs to the body, and that the ears require a rich, healthy blood supply to function normally.

“Although the role of iron in the inner ear has not been clearly established, blood supply to this area is highly sensitive to ischemic damage,” the researchers noted. Ischemia means a lack of blood supply.

In the inner ear, oxygen is necessary for the health of sensory hair cells involved in translating sound into electrical impulses. A lack of oxygen can damage these sensory hair cells or cause them to die, affecting the manner in which they are able to perform the translation and transmit the impulses to the brain for interpretation.

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