what age is teenager

According to the search results, a teenager is someone who is between the ages of 13 and 19. Adolescence is typically broken down into three sub-phases based on changes seen during these years, and the three years prior to the teens are included as the true beginning of adolescence. During adolescence, teenagers are learning to define who they are and to develop their own values, priorities, and goals. While the 18-year mark is when we are legally considered adults, technically a child is still an adolescent until their neurological development is complete around age 24.