Why are dementia rates going down?

A recently published, observational study [1] led by Dr. Kenneth Langa shows that the prevalence of dementia in the US has declined significantly from 2000 to 2012. Making use of the Health and Retirement Study (HRS), a source of nationally representative, longitudinal surveyed data, they compared the dementia rates of the 2000 (n = 10 546)…

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