Atmospheric lead pollution likely caused cognitive decline among citizens of the Roman Empire, according to research published Monday in the Proceedings of the National Academy of Sciences.



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Lead pollution linked to lower IQs in Roman Empire: Study

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Roman Empire’s lead pollution was high enough to lower IQs, study says

Oxford University study finds that lead pollution may have reduced intelligence levels by two to three points during the Pax Romana

The Telegraph

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David and Frederick Barclay

London

Greater London

England

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How Romans accidentally lowered their IQs

Atmospheric lead pollution likely caused cognitive decline among citizens of the Roman Empire, according to research published Monday in the Proceedings of the National Academy of Sciences. Researchers analyzed ice core records for an approximately thousand-year period corresponding roughly with the period from the Roman Republic through the decline of the Empire, focusing on the…

Nexstar Media Group

Around 2,000 years ago, the Roman Empire was flourishing. But something sinister was in the air. Literally.
Read more (01/08/2025)

H� cerca de 2.000 anos, o Imp�rio Romano estava florescendo. Mas algo sinistro estava no ar. Literalmente.
Leia mais (01/08/2025

Poluição por chumbo pode ter afetado QI de antigos romanos - 08/01/2025 - Ciência

Grupo Folha

Brazil

Lead pollution may have affected the IQ of ancient Romans - 08/01/2025

In ancient Rome, lead was widely used in glazed table wares, paints, cosmetics, and was intentionally ingested as well as being present in air pollution from mining and smelting.

Sky News UK

Roberts family

Lead pollution in ancient Rome may have lowered IQ levels, study finds

The ancient process of mining and extracting silver made the air thick with lead pollution, probably making the population slightly stupider

Toronto Sun

Leon Cooperman

Allianz

Toronto

Ontario

Canada

Roman Empire’s lead pollution was high enough to lower IQs: Study

A study published by the Desert Research Institute in Nevada reveals that lead pollution for nearly 200 years under the Roman Empire reduced the IQ of a quarter of the world's population.

Une étude publiée par le Desert Research Institute du Nevada révèle que la pollution au plomb pendant près de 200 ans sous l’Empire romain aurait fait baisser le quotient intellectuel d’un quart de la population mondiale.

Et si l'être humain avait perdu 3 points de QI à cause de la pollution au plomb sous l’Empire romain ?

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What if humans had lost 3 IQ points due to lead pollution under the Roman Empire?

The use of lead by the Roman Empire had the effect of reducing IQ levels across Europe, a study shows. Researchers describe how ice cores revealed a sharp increase in lead pollution around 15 B.C.

Utilizarea plumbului de către Imperiul Roman a avut ca efect reducerea nivelului IQ-ului în întreaga Europă, arată un studiu. Cercetătorii descriu modul în care nucleele de gheață au evidențiat o creștere bruscă a poluării cu plumb în jurul anului 15 î.Hr.

Elementul care a dus la scăderea IQ-ului în Europa. Încă este folosit și afectează populația

Adevarul

Romania

The element that led to a decrease in IQ in Europe. It is still used and affects the population

Lead pollution in ancient Rome likely dropped the average IQ, a study found. The research is based on an analysis of ice cores extracted from Greenland.

NBC News

Lead pollution in ancient Rome may have dropped average IQ by up to 3 points, study finds

Rome, January 7, 2025 — Lead pollution caused a decline in intelligence quotient (IQ) and an increase in cognitive decline in ancient Rome. This was discovered by a study by the Desert Research Institute (DRI), in Nevada, whose results have been published in the journal Proceedings of the National Academy of Sciences. The researchers examined Arctic ice to identify levels of lead pollution between 500 BC and 600 AD. The study focused on the Empi…

Roma, 7 gennaio 2025 – L'inquinamento da piombo ha causato un calo del quoziente intellettivo (QI) e un aumento del declino cognitivo nell'antica Roma. A scoprirlo è stato uno studio del Desert Research Institute (Dri), in Nevada, i cui risultati sono stati pubblicati sulla rivista Proceedings of the National Academy of Sciences. I ricercatori hanno esaminato i ghiacci artici per identificare i livelli di inquinamento da piombo tra il 500 a.C. e…

Nell’antica Roma l’inquinamento da piombo causò un calo di QI: lo studio

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In ancient Rome, lead pollution caused a drop in IQ: the study

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Lead pollution in ancient Rome may have dropped average IQ by up to 3 points, study finds

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