It would be interesting to see.

There’s a condition called cerebral microvascular disease.

Basically individual neurons die, but because the brain is fairly plastic the surrounding neurons pick up the slack.

That is of course until the brain is stressed, at which point the surrounding neurons drop the extra duty to focus on just their own jobs.

Once the stress goes away, the neurons pick up the slack again.

Now here’s the somewhat scary part. Something like 5% of adults over the age of 50 have it, to an extent that can be seen on a CT scan.

And 100% of those 90 and older have it.

It’s a major cause of dementia in older adults but is usually seen as momentary brain fog.