Hearing loss is generally underdiagnosed in the population but it is estimated to affect 1 in 6 people, and 2/3 of these will be over 65. One of the most common causes for hearing loss is presbycusis (age related hearing loss) which is progressive, and tends to affect both ears symmetrically and typically starts to occur over the 4th decade. Ageing in general is accompanied by a decline in memory and attention, but current research has shown that there may be more than just the age of a person linking hearing loss and loss of mental abilities. This research aims to investigate the prevalence of hearing loss and decline in mental abilities in the ageing population to identify possible links between hearing status and changes in memory and attention. We can use this information to ascertain whether hearing loss may be a marker for cognitive decline and whether cognitive impairment may be more severe in people with a hearing loss. We can then raise awareness for the need for hearing tests in people with cognitive decline and dementia.