In a freaky situation, a Chinese woman has been diagnosed with a type of hearing loss in which she is unable to hear the voices of men and can only higher frequency tones of other females. The female doctor who treated Chen said that she was able to hear her without any problem but she was unable to hear aything which was said by a young male patient.
Loss of hearing of lower-pitched sounds (which is what Chen experienced) is also less common because the bass-processing portion of the cochlea - a snail-shaped structure deep in the inner ear - is very well protected, said Jackie Clark, a clinical professor with the School of Behavioral and Brain Sciences at the University of Texas at Dallas, who also wasn't involved with Chen's case. In Chen's case, RSHL was preceded by an extremely stressful period - which her doctor says may have contributed.
The ENT specialist revealed it is important to treat such symptoms quickly, adding that she expects Chen to make a full recovery. "The graph starts in the lower-left-hand corner and slopes upward steeply", Audiology Hears writes.
The extremely unusual condition, which reportedly affects only about 3,000 people in the United States of America and Canada, causes patients to lose their ability to hear low-frequency sounds, including average male voices. In reverse-sloping hearing loss, the shape of the audiogram runs in the opposite direction. It's not just male voices they struggle with but any particularly low sound, including voices over the phone, the hum of a auto, and thunder. Less often, a shift in the pressure of ear fluid can trigger reverse-sloping hearing loss.
According to the World Health Organization, around 466 million people across the world are affected by some kind of hearing loss. A range of factors can cause hearing loss, including hereditary diseases, infections, certain drugs, aging, and exposure to loud noises.
To clarify, the woman can only hear voices belonging to other women.