Hormones are responsible for changes during adolescence.
Growth spurt
Your body is growing, and it's happening very fast. |
- Starts at age 12-13 years
- Peaks at 14 years
- Stops at 18 years
- Height velocity average 10.5 cm per year
- Average height gain of 28 cm
- Influenced by the male hormone androgen
|
- Starts at age 10-11 years
- Peaks at 12 or 13 years
- Stops at 17 or 18 years
- Height velocity average 9 cm per year
- Average height gain of 25 cm
- Influenced by the female hormone estrogen
|
Body taking shape |
- Muscular, broad shoulders
- Increased strength and stamina
|
- Breasts, hips and buttocks grow larger and become more curved
|
Hair growing everywhere |
- In the underarms
- Pubic area
- Moustache and beard
|
- In the underarms
- Pubic area
|
Miscellaneous |
- Skin becomes oily and rough
- Acne or pimples may appear
|
- Skin becomes oily and smoother
- Acne and pimples may appear
|
