The Economist in an article Nov 16, 2023, The British government is not paying dementia enough attention, alluded to a 2020 study, by Wolters FJ, et al, Twenty-seven-year time trends in dementia incidence in Europe and the United States: The Alzheimer Cohorts Consortium. Neurology. 2020 Aug 4;95(5):e519-e531. doi: 10.1212/WNL.0000000000010022. Epub 2020 Jul 1. PMID: 32611641; PMCID: PMC7455342.
The 2020 study found `The incidence rate of dementia in Europe and North America has declined by 13% per decade over the past 25 years,’
Collective problem solving for a much longer period of time increases our store of knowledge by about 3.41% per decade. As found in
Article A theory of intelligence: networked problem solving in anima...
One might suspect that increases in medical knowledge might suppress the rate of dementia by 3.41% per decade. But the rates are different. Is there any connection? Why did dementia rates decline from 1988 to 2015?
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