It’s a typical image of an elderly person, the old guy with his hand cupped over his ear saying “Speak up, I can’t hear you lad!” But not all folks lose their hearing merely from aging. Could this be due to genetics?
Neurotologists at the House Ear Clinic in Los Angeles, CA have identified a gene that is responsible for glutamate regulation, which may be one cause of hearing loss in the elderly. Glutamate, apparently, is a necessary neurotransmitter in the ear, but some people produce too much glutamate and this then damages sensory cells and neurons in the ear causing hearing loss. Continue reading