On today’s episode: Do our children’s immune systems suffer because of how clean modern society is? Don’t have a mind’s eye? Your brain may be different from those who do! Was the fall of the Roman Empire caused by lead poisoning? All that and more today on All Around Science.

LINKS: * ARTICLE: Being clean and hygienic need not impair childhood immunity * ARTICLE: Brain connections mean some people lack visual imagery * ARTICLE: Did Lead Poisoning Contribute to the Fall of the Roman Empire? * YouTube: Reactions w/ Samantha Jones

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