Middle Adolescence (15 to 17 Years Old)
Adolescence is divided into 3 stages: early (12 to 14 years), middle (15 to 17 years), and late (18 to 20 years). While certain attitudes, behaviors, and physical milestones tend to occur at certain ages, a wide spectrum of growth and behavior for each age is normal. Consequently, these guidelines are offered as a way of showing a general progression through the developmental stages rather than as fixed requirements. It is perfectly natural for a teen to attain some milestones earlier and other milestones later than the general trend.
Physical Development
- Most girls have completed the physical changes related to puberty by age 15.
- Boys are still maturing and gaining strength, muscle mass, and height and are completing the development of sexual traits.
Emotional Development
- May have anxiety over school and test scores.
- Is self-involved (may have high expectations and low self-concept).
- Seeks privacy and time alone.
- Is concerned about physical and sexual attractiveness.
- May complain that parents prevent him or her from doing things independently.
- Starts to integrate both physical and emotional intimacy into relationships.
Social Development
- Is increasingly aware of social behaviors of friends.
- Seeks friends that share similar beliefs, values, and interests. Friends become more important.
- Starts to have more intellectual interests.
- May be influenced by peers to try risky behaviors (alcohol, tobacco, sex).
Mental Development
- Becomes better able to set goals and think in terms of the future.
- Has a better understanding of complex interrelationships of problems and issues.
- Starts to develop moral ideals and to select role models.
If you have any concerns related to your teen’s own pattern of development, check with your health care provider.