Tinnitus is a condition in which a person hears a ringing, buzzing or hissing
sound which is caused by the hearing system itself and not by any external
Tinnitus can be temporary or persistent and is relatively widespread. It is
often associated with hearing impairment, ageing or exposure to loud sounds, and
generally involves the part of the
nervous system that deals with hearing.
Source: GreenFacts, based on SCENIHR
"Potential health risks of exposure to noise from personal music players"
Ear - Nervous system
Deutsch: Ohrensausen (Tinnitus)