Loading...

To the researchers, surprised that the tea from people born in the mid-20th century, let's say the 1940s to the 1970s, when exposed to leaded gasoline and paint was widespread and it showed similar lead patterns to ancient human fossils. And the scientists think that ancient humans and their relatives might have encountered through their search for water, like the Romans did later in history. And they might have been looking for caves with running water inside, and caves. Caves contained lead, so they were all contaminated. Lead is coming, leaching down through the walls from above, and they start drinking this, and they become contaminated. This is based on two enamel studies, and it started very early in infancy. They were tracing the enamel to the edge of the fossil remains, and they were finding this lead was something that began in infancy, way back in archaic times.