There's apparently a fairly contested research area of bilingualism being neuroprotective against cognitive decline in old age, such as dementia.

What are the main points for and against this hypothesis?

  • $\begingroup$ Cognitive decline may be better correlated with diet. See Steven Gundry's The Plant Paradox. $\endgroup$ Commented Sep 18, 2018 at 3:48
  • $\begingroup$ Could you shortly summarize what you already know based on the linked article? $\endgroup$
    – Steven Jeuris
    Commented Sep 18, 2018 at 10:56
  • 1
    $\begingroup$ @AliceD: yes, I will, but I need work on it a little beforehand, because it's easier to refute a point than to provide a somewhat balanced summary. $\endgroup$ Commented Sep 19, 2018 at 7:37


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