Lead pollution impacts which of the following parts of the human body the most?

Lead most severely damages the brain and nervous system, especially in children.

The heart is affected by lead but is not the principal target.

The eye is not the organ most harmed by lead exposure.

The skin is not the main site of lead toxicity.

Lead crossing into the brain impairs cognition, learning and behaviour.

Even low blood-lead levels can lower a child's intelligence permanently.