Another very interesting article. From all the articles I've read after my father's stroke, keeping the brain busy is extremely important in order to prevent further degeneration. But as always I'm pretty sure that there are different qualities of "busy" (e.g. watching day-time-TV vs. reading/listening to a philosophically inspired book) as well as balance - when something becomes too much, it will do harm.
Looking forward to reading updates on this topic, thank you very much!