The physical changes experienced by a 17-19 year old are significant, marking the final stages of puberty and the transition into young adulthood.
Physical Growth and Development
- Height and Weight: Most individuals reach their full adult height during this time, though some may continue to grow slightly until their early twenties. Weight gain is also common as muscle mass increases and body composition changes.
- Muscle Development: Boys experience a surge in testosterone production, leading to increased muscle mass and strength. Girls also experience muscle growth, but to a lesser extent.
- Bone Growth: Bones continue to grow and strengthen, reaching peak bone density around age 30.
- Body Fat Redistribution: Both boys and girls experience changes in body fat distribution. Boys tend to gain more muscle mass and less fat, while girls tend to gain more fat in the hips and thighs.
- Sexual Maturation: The physical changes associated with sexual maturation, such as breast development in girls and facial hair growth in boys, are typically complete by this age.
Other Physical Changes
- Skin Changes: Skin may become more oily and prone to breakouts due to hormonal changes.
- Hair Changes: Hair growth patterns can change, including increased hair growth in the armpits and pubic area.
- Voice Changes: The voice deepens in boys due to the growth of the larynx.
Individual Variation
It's important to remember that physical development can vary greatly from person to person. Some individuals may experience these changes earlier or later than others.
Conclusion
The physical changes experienced during the ages of 17-19 are a natural part of growth and development. These changes can be exciting, challenging, and sometimes confusing, but they are ultimately a sign of reaching adulthood.
