Sunday, November 16, 2025

Scientists find a surprising link between lead and human evolution

Researchers found that ancient hominids—including early humans—were exposed to lead throughout childhood, leaving chemical traces in fossil teeth. Experiments suggest this exposure may have driven genetic changes that strengthened language-related brain functions in modern humans.

from Top Health News -- ScienceDaily https://ift.tt/CTR3eXa

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Scientists discover why some DNA-doubled cells refuse to die

Scientists have uncovered a surprising twist in how cells behave when division goes wrong. Sometimes a cell successfully copies its DNA but ...