What is one common symptom of lead poisoning in children?

Developmental delays are a commonly observed symptom of lead poisoning in children. Lead interferes with the normal development of the brain and nervous system, leading to cognitive impairments and delays in reaching developmental milestones. These delays can manifest as difficulties in learning, speech, and motor skills, which can have lasting effects on a child's educational and social progress.

In contrast, the other symptoms provided do not reflect the typical effects of lead exposure. Increased appetite is not associated with lead poisoning, and while children may experience a range of physical ailments, frequent headaches and sensitivity to light are not primary indicators of lead toxicity in this age group. Understanding the impact of lead on a child's development is crucial for early identification and intervention.