Fitness is defined as a state of being healthy, which prepares the body for the physical necessities of daily life. To be more precise, fitness provides strength, flexibility and stamina for the proper functioning of the body. It is a total solution for a perfect, fine-tuned life. The five main components of fitness are aerobic endurance, muscular strength, muscular endurance, and flexibility and body composition. The right kind of physical and mental exercises and proper intake of nutritious food are the factors that contribute to fitness. A well-balanced diet not only makes one fit, but provides all necessary nutrients for the body. Mental fitness, essential for the psychological well-being of a person, is also a key factor in sustaining a healthy state.