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Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1]
The age at which puberty begins is affected by both genetic factors and by environmental factors such as nutritional state and social circumstances. [71] An example of social circumstances is the Vandenbergh effect; a juvenile female who has significant interaction with adult males will enter puberty earlier than juvenile females who are not ...
The relationships adolescents have with their peers, family, and members of their social sphere play a vital role in the social development of an adolescent. As an adolescent's social sphere develops rapidly as they distinguish the differences between friends and acquaintances, they often become heavily emotionally invested in friends. [136]
As part of a science program on Norwegian public television , a series on puberty intended for 8–12-year-olds includes explicit information and images of reproduction, anatomy, and the changes that are normal with the approach of puberty. Rather than diagrams or photos, the videos were shot in a locker room with live nude people of all ages.
Social media allows people to communicate with other people using social media, no matter the distance between them. [4] Some adolescents with social and emotional issues feel more included with social media and online activities. [5] Social media can give people a sense of belonging which can lead to an increase in identity development.
Adolescent exposure to pornography is divided into two different sections: unintentional exposure and intentional exposure. The unintentional exposure rate for US adolescents was found to be from 19% [27] to 32% [28] from 2007 to 2013. Intentional pornography adolescent viewers from 10 to 17 years old take up 34% of the population at that age ...
Teenage rebellion is a part of social development in adolescents in order for them to develop an identity independent from their parents or family and a capacity for independent decision-making. [1] Teenage rebellion usually begins at around 13 years old, while for some it may start to happen 1-2 years before puberty.
[20] [21] Puberty which starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics , the "filling in" of the child's ...