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Normal aging and cognition: the unacknowledged contribution of cerebrovascular risk factors
L Morra1, D Zade, R E McGlinchey
1Translational Research Center for TBI and Stress Disorders (TRACTS), VA Boston Healthcare System, Boston, MA, USA. lmorra1@binghamton.edu
Abstract:
Despite the widespread assumption that cognitive decline is an inherent part of the normal aging process, research suggests that part of the variance in age-related cognitive decline is attributable to modifiable factors common in geriatric populations such as cerebrovascular risk factors. We completed a literature search using Science Citation Index and evaluated the most cited articles from the last 10 years to determine the extent to which investigations of normal aging and cognition account for the influence of cerebrovascular risk factors. We found that the majority of the most frequently cited literature does not adequately account for the contribution of cerebrovascular risk factors and therefore, it is possible that many conclusions about normal aging and cognition are flawed or incomplete. Further investigation of the role of cerebrovascular risk factors in age-related cognitive decline is imperative to more accurately understand the effect of aging on cognition.
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