Good health is an essential to happiness, and happiness is an essential to good citizenship.Charles Horace Mayo (1865 - 1939) U.S. physician.Perfect health is an indispensable and an uncompromising part of life which everybody longs to have and maintain. However, it is beyond the reach of many people, not because they cannot have it but because of their wanton indulgent habits, as such they have inflicted on themselves sicknesses which can be described as self inflicted sicknesses.But you can be in good health, I say like Apostle John: I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth. 3rd John 1:2.Thus, eating a wide variety of food is important since different foods contribute different nutrients (substances) your body needs to stay healthy. Healthy eating habits include eating lots of fruits and vegetables and staying away from junk food such as candy, potato chips, and soda.