Vascular risk factors are known to be associated with dementia. This study suggests atherosclerosis (hardening of the arteries) intracranially (in brain) is associated with mild cognitive impairment (MCI:Pre-dementia?) and dementia.
Treating vascular risk factors may again decrease the development of atherosclerosis and decrease the prevalence of MCI and dementia.
Neurology 2017 Apr18;88:1556