Adolescence:

Mind and Body, you have already studied that certain hormones are essential  for proper physical development of an  individual. Around the age of  12,  starts a period when special hormones are  secreted  in the body and transition from childhood to adulthood takes place.

This is kndwn as adolescence, a period of very rapid physical growth, accompaniqd  by a gradual develbpment of  reproductive organs and secondary sexual characteristics  such as beard for men and breasts for women. The age limits of  adolescence roughly extend fnnn around 12 to about 18 years when physical growth is nearly complete. 

During adolescence, not only is physical growth rapid, but its sex-related character  changes the social position of  the individual. Cognitive development and knowledge base also reaches a point when a person is able to formulate his or her ideas, fairly clearly, about various questions in life. People are  able to develop a world outlook or an ideology of their own, and hence personality. At the end, they are  no more boys or girls, but they are  men and women, generally able to stand on their own. The five or six years of adolescence  stage are very crucial for everyone, and since they generally correspond to classes 7^th or 8^th to 12^th or first year of college,  they are important for teachers to keep in mind while dealing with 'theit students. The transition can be clumsy and confusing, too aggressive or too timid for the young person.