Child health is a state of physical, mental, intellectual, social and emotional well-being and not merely the absence of disease or infirmity. Healthy children live in families, environments, and communities that provide them with the opportunity to reach their fullest developmental potential. Your child's health includes physical, mental and social well-being. ... It is also important for children to get regular checkups with their health care provider. These visits are a chance to check your child's development. They are also a good time to catch or prevent problems. Security. Kids must feel safe and sound, with their basic survival needs met: shelter, food, clothing, medical care and protection from harm.