It buzzes, hisses, beeps or rings: Almost everyone is familiar with annoying noises in the ear, medically known as tinnitus. Most of them disappear after a short time. An estimated 5 to 15 percent of all adults worldwide suffer from it for a long time or permanently.
Tinnitus often occurs as a result of noise – after a loud bang or very loud sound – which has damaged the sensory cells of the cochlea in the inner ear. But there are