What is a sign of physical maturity?

A sign of physical maturity is the development of secondary sexual characteristics, such as the growth of facial hair in males and breast development in females. Additionally, individuals often reach their peak height and muscle mass during late adolescence. Other indicators include changes in body composition and the ability to engage in more complex physical activities. Overall, physical maturity reflects a combination of biological and physiological growth that typically occurs in late teenage years to early adulthood.