1. Puberty: During puberty, boys experience an increase in height and weight, as well as changes in their hormone levels. This leads to increased muscle mass and body hair, as well as an increase in sweat production.
2. Development of Primary and Secondary Sex Characteristics: Boys develop secondary sex characteristics such as facial and pubic hair, deepening of the voice, and an increase in penis size. Primary sex characteristics such as testicles grow during puberty as well.
3. Growth Spurt: Boys experience a growth spurt during adolescence, typically beginning around age 11 and peaking around age 16. During this time, boys may grow as much as four inches in a single year.
4. Increase in Strength: Boys reach their peak strength during adolescence, and this is when they often begin participating in strength-training activities such as weightlifting.
5. Increase in Sexual Urges: Boys experience an increase in sexual urges and desires during adolescence, which can lead to changes in their behavior.
puberty, Sexual Urges ,
Growth Spurt