Teenage dating statistics
Consequently, girls that reach sexual maturation early are more likely than their peers to develop eating disorders (such as anorexia nervosa).
Nearly half of all American high school girls' diets are to lose weight.
Physical growth (particularly in males), and cognitive development can extend into the early twenties.
Thus age provides only a rough marker of adolescence, and scholars have found it difficult to agree upon a precise definition of adolescence.
The accelerated growth in different body parts happens at different times, but for all adolescents it has a fairly regular sequence.
The study of adolescent development often involves interdisciplinary collaborations.A thorough understanding of adolescence in society depends on information from various perspectives, including psychology, biology, history, sociology, education, and anthropology.Within all of these perspectives, adolescence is viewed as a transitional period between childhood and adulthood, whose cultural purpose is the preparation of children for adult roles.The end of adolescence and the beginning of adulthood varies by country and by function.Furthermore, even within a single nation state or culture there can be different ages at which an individual is considered (chronologically and legally) mature enough for society to entrust them with certain privileges and responsibilities.
Facial hair is often present in late adolescence, around ages 17 and 18, but may not appear until significantly later.