What is the Concept of Human Growth and development? Human growth and development refers to the development of children from birth to adolescence. Human growth and development are keenly focused on newborns to teenagers. Parents are so confused with their child growth in the lifespan of their childhood. Lifespan Development( The scientific study of the psychology of development from childhood to old age) is the most emerging field in social science. What is Developmental Psychology? Developmental is the most emerging degree for professionals who are seeking their career in the field of psychology. The alternate name of Developmental Psychology is Lifespan psychology. Developmental psychology is defined as the pathological, intra-individual change associated with progression corresponding age. The lifespan development or developmental psychology involves the examination of consistency and change in human behavior across the entire life span. Human growth and development occur in differ