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kidshealth library

health & safety topics

Your child's health and safety is our top priority. Please search our resource library for information on health, nutrition, fitness, injury prevention and other important topics.

Genetic, Chromosomal & Metabolic Conditions

Williams Syndrome

Williams syndrome is a disorder that causes developmental delays, learning problems, and heart and blood vessel problems. But kids who have it usually have good verbal skills and are friendly and social.

XYY Syndrome

XYY syndrome is a rare genetic condition that affects only males. Boys who have it may be taller than average, but the symptoms can vary greatly.