The human body is a complex and (dependent on each other) series of systems. The circulatorysystem is the center of all life for the body because it moves blood, oxygen, food, and waterthroughout the body. If the circulatory system is not functioning properly, nearly all the othersystems in the body will suffer. This interconnectedness is one of the reasons that overall health must always be kept in mind as we grow older to preserve the quality of our lives. does this work?