A person who has good physical health is likely to have bodily functions and processes working at their peak. This is not only due not only to an absence of disease. Regular exercise, balanced nutrition, and adequate rest all contribute to good health. People receive medical treatment to maintain the balance, when necessary. Physical well-being involves pursuing a healthful lifestyle to decrease the risk of disease. Maintaining physical fitness, for example, can protect and develop the endurance of a person’s breathing and heart function, muscular strength, flexibility, and body composition.