Our Brains Evolved Thanks to… Lead? New Study Surprises Scientists
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Our Brains Evolved Thanks to… Lead? New Study Surprises Scientists

Scientists found that ancient lead exposure shaped early human evolution. The toxin may have played a surprising role in the development of modern cognition and language. An international team of scientists has challenged the long-held belief that exposure to lead is primarily a modern, post-industrial issue. Their findings show that human ancestors encountered this toxic [...]