Stages of development infancy

Actually, Human development is a predictable process that moves through the stages of infancy, childhood, adolescence, and adulthood. In infancy, we rely on others to meet our needs as we begin to gain control over our bodies. In childhood, we begin to develop our sense of independence and learn what we can and cannot do. Infancy is the earliest part of a person's life, when they're a baby. Infancy is vaguely defined, usually including the time from birth to about one year old.