What is the correct order of the five stages of the lifespan?

The correct order of the five stages of the lifespan is Infancy, Childhood, Adolescents, Adulthood, and Aged. This sequence is based on the development and growth phases that individuals typically experience from birth through old age.

Infancy represents the first stage, which encompasses the earliest period of human development, from birth to around two years of age. During this time, rapid physical growth and foundational cognitive and emotional development occur.

Following infancy is Childhood, which generally spans from ages two to around twelve. This stage sees significant development in language, social skills, and basic academic skills.

Next is Adolescents, which roughly ranges from ages twelve to twenty. During this stage, individuals undergo puberty, experience significant emotional and social changes, and begin to form their identities.

Adulthood comes after adolescence, beginning in the late teens or early twenties and continuing through midlife. This stage is marked by more stable relationships, career development, and sometimes parenting.

Finally, the Aged stage, which follows adulthood, highlights the later years of life, characterized by aging and often declining health.

This sequence acknowledges the natural progression of human development and the typical life experience, illustrating how each stage builds on the previous one.