This Is Your Brain on Pollution (Update)

Jun 10, 2026 · 47 min · YouTube

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EP · Freakonomics Radio · This Is Your Brain on Pollution (Update)47:24

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29:04–30:43	LinkedIn	insertedspotify copy only	mid-roll	linkedin.com/freakonomics	dai
38:48–40:32	LinkedIn	insertedspotify copy only	mid-roll	linkedin.com/freeconomics	dai
53:03–54:35	Charles Schwab	insertedspotify copy only	post-roll	schwab.com/financial	dai

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0:03Hey there, it's Stephen Dubner.

0:05We recently got an email from a listener who wondered if the recent wildfires in the southeastern United States were going to affect the final exam scores for high school and college students.

0:15Not because students were displaced by the fires, but because the wildfire smoke might have affected their brains.

0:23This listener had apparently heard an episode we made a few years ago called This Is Your Brain on Pollution.

0:29So we've decided to replay that episode for you today with updated facts and figures.

0:35As for whether this year's test scores in the Southeast were affected, that sounds like an excellent research question for an enterprising investigator.

0:44If anyone out there decides to do that research, let us know.

0:47We're at radio at freeconomics.com.

0:50As always, thanks for listening.

0:58It's worse than cigarette smoking.

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