Hyperacusis manifests as hypersensitivity to certain sounds. This is quite a rare hearing dysfunction that can make certain frequencies considered harmless by others utterly unbearable. The cause of this condition is presently still unknown. It is postulate, however, that it is caused by a deterioration of certain regulatory cells
or a hearing disruption. Hyperacusis affects nearly half of all tinnitus
sufferers. As a preventative measure, it is strongly advisable to protect yourself from all loud noise using any means available.