1. The harm of excessive lead in children Lead is a toxic heavy metal, and long-term exposure will cause great harm to human health. Children are more susceptible to lead poisoning because of their immature physical development and strong absorptive capacity. When lead in children\’s bodies exceeds the standard, a variety of symptoms will occur, such as mental decline, abnormal behavior, anemia, etc. Therefore, it is very important to protect children from lead poisoning. 2. How to prevent excessive lead exposure in children 1. Note