The above graph represents the frequency that can be heard according to age. It is apparent that as a person gets older their hearing becomes less able to recognise frequencies. This relationship between age and hearing loss shows the condition of presbyacusis which affects every aging human. Presbyacusis is the slow loss of hearing over time. This hearing condition affects higher sound frequency perception compared to lower frequencies as represented in the above graph, with the pattern of how the older a subject the more hearing loss of higher frequencies there is. Presbyacusis is caused by a number of factors these include genetics, medical conditions and repeated exposure to loud sounds. The most prevalent cause however is repeated exposure