The correlation between hearing loss, dementia and cognitive decline is becoming more and more researched. There are multiple studies illustrating the link between hearing loss and the onset of dementia. Dr. Frank Lin first observed this link when he monitored cognition and hearing loss in close to 2000 adults, with an average age of 77 years. The study concluded that the more severe the hearing loss, the more likely the person was to develop a cognitive decline. Even individuals with a mild hearing loss were more likely to experience a cognitive failure, indicating how important it is to treat hearing loss even at the beginning stages.