I think you might be able to generalize that to say that feeding the brain novelty keeps it from degenerating, by forcing it back into learning mode. Have you

I think you might be able to generalize that to say that feeding the brain novelty keeps it from degenerating, by forcing it back into learning mode. Have you ever noticed how sometimes when you read a really interesting book, and you learn some really key insights about the world, suddenly, you get a burst of new ideas? As though a flood of neurotransmitters has just been released? Maybe that has health effects related to dementia.