Physical development is driven by a surge in hormones like testosterone in boys and estrogen in girls.
Increased body hair, skin changes like acne, and the development of body odor. Adolescent Development - Cleveland Clinic adolescence
Rapid increases in height and weight; girls typically start around ages 10–12, while boys follow about two years later. Physical development is driven by a surge in
Development of primary and secondary sex characteristics, including breast development and menstruation in girls, and testicular/penis growth and voice deepening in boys. skin changes like acne
Adolescence is the transformative phase of development between childhood and adulthood, typically occurring from ages 10 to 19 or into the mid-20s. It is defined by rapid physical, cognitive, and social changes as individuals transition toward independence. Physical Features (Puberty)