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  1. Teenager - Simple English Wikipedia, the free encyclopedia

    Constantly exposed to new ideas, social situations and people, teenagers work to develop their personalities and interests. Before their teenage years, they focused on school, play, and …

  2. Adolescence | Psychology Today

    Adolescence can be a time of both disorientation and discovery. The transitional period can raise questions of independence and identity; as adolescents cultivate their sense of self, they may...

  3. Adolescence | Definition, Characteristics, & Stages | Britannica

    Nov 23, 2025 · adolescence, transitional phase of growth and development between childhood and adulthood. The World Health Organization (WHO) defines an adolescent as any person …

  4. Information About Teens (Ages 12-19) | Parent Information | CDC

    Oct 21, 2025 · Essentials for Parenting Teens is a free online resource for parents and caregivers of youth between... Provides information on a variety of health topics for parents with teens.

  5. Adolescent Development - Cleveland Clinic

    Adolescence is the period of transition between childhood and adulthood. Children entering adolescence are going through many changes in their bodies and brains. These include …

  6. Teens - American Psychological Association (APA)

    The period of human development that starts with puberty (approximately 10 to 12 years of age) and ends with physiological and neurobiological maturity, shown in neuroscientific research to …

  7. Stages of Adolescence - HealthyChildren.org

    Understanding what to expect at different stages can promote healthy development throughout adolescence and into early adulthood. During this stage, children often start to grow more quickly.

  8. Adolescent Development Stages and Challenges in Teen Growth

    Dec 17, 2024 · Parents and educators play a vital role in fostering critical thinking and providing opportunities for teenagers to make age-appropriate decisions. Moreover, adequate sleep is …

  9. The Growing Child- Teenager (13 to 18 Years)

    Sexual and other physical maturation that happens during puberty is due to hormonal changes. Here's a look at the changes for boys and girls. In boys, it's hard to know exactly when puberty …

  10. Adolescent Development - Youth.gov

    These TAG Talks address different topics related to adolescent development and learning more about what is most helpful to youth experiencing this shift: