Health is important to the man. Health is wealth. Good health helps for long live. A disease is an unhealthy condition that makes us ill. Some diseases are caused by bacteria or gems, and some by viruses, some by parasites through insect bite etc. and some by fungus. Diseases which are capable of being transmitted to another person by direct or indirect contact, i.e., through air, food, water, etc. are called infectious diseases. Types of infectious disease such as smallpox which spread from one person to another by physical contact are called contagious diseases. Some diseases are hereditary. These are inherited to children from their parents.

Many drugs, vaccinations and inoculations have been developed to help us cure or fight diseases, although some diseases like Cancer, Aids, and Diabetes have still no complete cure. Proper nutritious diets, abstaining from such habits as smoking and sufficient and sufficient physical exercise play an important role in keeping good health.

• Breakfast is considered the most important meal of the body. A good morning meal, provides solid fuel with which the body can recharge its energies after the long overnight fast and make children perform better in studies.
• Teeth are covered with enamel, the hardest substance made by animals. They are connected to jaw by strong fibers that allow slight movement when chewing or biting. Humans have two sets of teeth: the first, 0f 20, called milk teeth, starts to fall out at about age; 6 the second, of 32 replaces the first and is permanent.

A 12 year old child has 28 teeth. About five or six years later, four more teeth grow. They are known as wisdom teeth. Some adults never fully row four teeth. Some babies are born with a full set of teeth, for instance, Napoleon and King Louis XIV of France.