It highlights the deepening of the voice, facial hair growth, and muscle definition.

A community-based sexuality education program for parents and their puberty-aged children was also developed in 1991, designed to provide factual information about puberty and sexuality as a basis for increased communication between parents and children. Follow-up evaluation data from a sample of 35 fathers indicated the program's effectiveness.

The keyword “Puberty Sexual Education For Boys And Girls 1991l” serves as a historical document in itself—a snapshot of an era when puberty was treated as a disease to be managed, not a development to be celebrated. In 1991, a boy and a girl could sit in separate rooms, watch separate films, and learn entirely separate (and incomplete) versions of human biology. They were never taught to talk to each other about it.