Aging is another cause of sensorineural synapsext australia Loss. A person can face sensorineural hear damage due to illness, genetic predisposition, inner ear's malformation, head trauma, drugs or medicines that are unhealthy for auditory system and even aging. One kind of synapsext australia problems, presbycusis, happens slowly as a individual ages. On average, humans hear a range of sounds between 20 Hz (Hertz: cycle per second) to 20,000 Hz.