What is the period called when a child undergoes physical and emotional changes as they grow up?

The period when a child undergoes significant physical and emotional changes as they transition into adulthood is known as adolescence. This stage typically occurs between the ages of 10 and 19 and is characterized by various developmental events, including puberty, which involves physical growth, hormonal changes, and the development of secondary sexual characteristics. Emotionally, adolescents often experience increased independence, the formation of identity, and a greater capacity for complex thinking.

In contrast, infancy refers to the very early stage of life, from birth to around two years old, when the primary focus is on rapid physical growth and early developmental milestones. Childhood encompasses the years following infancy and involves growth and learning, but does not include the profound changes associated with adolescence. Adulthood follows adolescence, marking a stage where individuals have reached full physical and emotional maturity.