The cycle of life is an expression that refers to the ideas of completion and circularity. The concept also implies the conceptions of regularity and repetition. A cycle assumes that certain events occur from time to time, following a long established dynamic. Looking at life as a cycle, you think about stages that are common to all, especially in the way they occur in society: birth, infancy, childhood, youth, maturity and old age. This sector provides an overview of this social dynamic in Brazil in certain regions at specific points in time.