Although it is not normal to have lead in the body, most people have a small amount of it in their system. High levels of lead can lead to behavioral and learning problems, hearing difficulties, and slowed growth. Prolonged exposure can harm the brain, nervous system, kidneys, and blood. Lead is all around us. We can be be exposed to it from the food we eat, the water we drink, the dust we breathe in, and the paint on our walls.
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