Can Repetitive Negative Thinking Speed Up Cognitive Decline?

In a 2015 paper, “Cognitive Debt and Alzheimer’s Disease,” Natalie Marchant and Robert Howard, who is a professor of Old Age Psychiatry at University College London (UCL), proposed a novel concept called the “cognitive debt hypothesis,” which posits that repetitive negative thinking (RNT) might be linked to an increased risk of Alzheimer’s disease.

Recently, a follow-up study led by Marchant investigated the association between RNT and various markers of Alzheimer’s (the most common form of dementia) in a cohort of 292 people over age 55. The findings (Marchant et al., 2020) were published on June 7 in the journal Alzheimer’s & Dementia.

Natalie Marchant is the principal investigator and senior research fellow at University College London’s Department of Mental Health of Older People within UCL’s Division of Psychiatry.

Full article at Psychology Today

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