Eight Stages of Lifespan Development

Infancy(birth-1 year old), Toddler(1-3 years old), Preschool(3-5 years old), school age(6-12 years old), Adolescence(13-19 years old), Early Adulthood(20-40 years old), Middle Adulthood(40-65 years old), Late adulthood(65 and older)