Lead Poisoning May Have Made Ancient Romans a Bit Less Intelligent

Roughly 2,000 years ago, the Roman Empire was flourishing. But something sinister was in the air. Literally.Widespread pollution in the form of airborne lead was taking a toll on health and intelligence, researchers reported on Monday in the journal Proceedings of the National Academy of Sciences.During the roughly two centuries starting in 27 B.C., a period of relative stability and prosperity known as the Pax…