Physical Development in Adolescence
The physical changes in adolescence are among the most noticeable aspects of this developmental stage. This period is marked by significant growth and the onset of puberty.
Definition: Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.
Key physical changes during adolescence include:
- Growth spurts in both height and weight
- Loss of all baby teeth, replaced by adult teeth
- Development of primary and secondary sexual characteristics
Vocabulary: Primary sexual characteristics are those present at birth and directly involved in reproduction, while secondary sexual characteristics emerge during puberty and are not directly involved in reproduction.
For males, physical changes typically include:
- Enlargement of testicles and penis
- Growth of pubic, facial, and body hair
- Deepening of voice
- Increased muscle mass
For females, physical changes usually involve:
- Beginning of menstrual cycle and ovulation
- Growth of breasts
- Widening of hips
- Development of pubic and underarm hair
Highlight: The first sign of puberty in males is often testicular enlargement, while for females, it's usually breast development or the growth of pubic hair.
The timing of puberty can vary, but it typically starts around age 12 for males and 11 for females. These physical changes can have a significant impact on an adolescent's self-image and emotional well-being.