Presbycusis

It is a fact that with the passage of time most people’s hearing deteriorates. The reason for this is that there is a gradual loss of the outer and inner capillary cells of the perilymph (eardrum / inner ear). This loss is more pronounced at the base of the cochlea, which detects the high frequencies that are important for good hearing when there is background noise and less severe in the middle sections that detect the main bulk of sounds from the surrounding space, and speech.

These alterations in the cochlea seem to begin at birth and thus there is a gradual loss of capillary cells in all people, although the rate of loss varies from person to person. The result of this progressive loss is usually not perceptible until the person reaches the age of 40.

It usually starts to prove difficult to perceive sound in conversations in a noisy environment (for example, inside a restaurant), because the loss of high frequencies makes it difficult to distinguish between different voices.

Πρεσβυακουσία

Another feature that accompanies the loss of capillary cells is the so-called “recruitment”. Presbycusis causes hearing levels to decrease to such an extent that low sounds cannot be perceived; when the volume reaches a level that is detectable, there is a rapid rise in the volume of the perceived sound, which ends up being annoyingly loud as the intensity increases. For example, when you start to increase your voice volume because your hearing-impaired interlocutor complains that he cannot hear you, he can quickly come to complain that you are shouting.

Unfortunately, there is no cure or method of prevention of presbycusis.

At the moment, all that can be done is to make sure that the person is not suffering from a curable ear condition, and recommend hearing aids if applicable.