Lead is very detrimental to neurological development in children. Are there any records that indicate a significant decrease in population or the effects of lead poisoning?
"Lead poisoning can be a serious public health threat with no unique signs or symptoms. Early symptoms of lead exposure may include:
Failure to treat lead poisoning in the early stages can cause long-term or permanent health damage, but because of the general nature of symptoms at early stages, lead poisoning is often not suspected.
In adults, lead poisoning can cause:
In children, lead poisoning can cause:
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Thanks to everyone who answers!
You might be interested in this post by /u/Talleyrayand .
Basically, the Romans weren't in that much contact with lead.
The Romans knew lead was dangerous and didn't use it much for containers.
Water continually flowed in their system. It did not sit idle in lead pipes, so it didn't have time to be contaminated.
Much of the water was hard and thus coated the inside of the pipes with minerals, so the water wouldn't be in direct contact with the lead anyway. You can see an example of what would happen inside an aqueduct here .