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[Correspondence] Prevention of dementia by targeting risk factors

The Lancet Commission (Dec 16, 2017, p 2673)1 on prevention and management of dementia reviews the mounting evidence that hearing loss is a major risk factor for cognitive decline. Crucial information is still absent about the nature of this linkage and what factors might modify the cognitive effect of peripheral hearing loss. Particularly, the potential relevance of central hearing impairment should not be underestimated. As Gill Livingston and colleagues1 acknowledge, on pathophysiological and neuroanatomical grounds, central auditory processing is likely to be susceptible early in the course of Alzheimer’s disease and other dementias.

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