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Very much so. It can be poisonous to people in several ways. To start, pencils used to be made with lead instead of graphite, but many children got sick from lead poisoning. They also used to create fancy hats with lead in them, thus creating the phrase 'mad hatter'.

It is especially harmful if ingested.

Lead affects the nervous system and can cause:

Stomachaches

Nausea, vomiting

Persistent fatique

Headache

Muscle weakness

IQ decline

Chronic Low blood pressure

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15y ago

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