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Anecdotally, I've noticed a very big difference in elderly people who have lived in several places, especially abroad, versus those who have mostly spent their life in one home. They are usually much more lucid and easier to communicate with. Less prone to social miscues, that sort of thing.

There seems to just be more awareness since you are forcing yourself to learn to deal with new environments.

I wonder if there's been any kind of study on frequency of moving or travel on the brain.

Relevant: Bilingualism delays age at onset of dementia, independent of education and immigration status


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.

I've heard that there's a negative correlation between people who speak multiple languages, and dementia and Alzheimer's.

I'm wondering if that relates to your anecdote, and how much impact traveling vs languages help.

Maybe it's because more intelligent people tend to travel more and intelligence is correlated with decreased rates of dementia?

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