What is Fitness:
            Physical fitness is to the human body what fine tuning is to an engine.  It enables us to perform up to our potential.  Fit can be described as a condition that helps us look, feel, and do our best!
            More specifically, fitness is “The ability to perform daily tasks vigorously and alertly with energy left over for enjoying leisure-time activities and meeting emergency demands.  It is the ability to endure, to bear up, to withstand stress, to carry on in circumstances where an unfit person could not continue, as is a major basis for good health and well being.”
Physical fitness involved the performance of the heart and lungs, and the muscles of the body.  And since what we do with our bodies also affects what we can do with our minds, fitness influences to some degree qualities such as mental alertness and emotional stability.