Health is the absence of illness or disease, and it encompasses one’s physical, mental, and social well-being. Defined differently, health is the ability of a specific biological system to generate, distribute, and utilize energy effectively without the interference of disease-causing microorganisms. The health of a child is determined by comparing the child’s weight and activity level against set guidelines. If a child, for instance, has a low or high birth weight, then the health of that child is compromised. Specifically, children with an unhealthy birth weight are prone to different illnesses and diseases. Good health is essential because it helps boost the body’s immunity and guards against infections and disease. A healthy child demonstrates positive growth and development physically, mentally, and socially and displays great intellectual potential. Proper feeding, good hygiene, and regular exercise will ensure a child’s good health.