Adolescents are subject to all kinds of changes from the onset of puberty to the onset of adulthood, from physical growth to mental development. This has been true since the dawn of humanity, but new actors have been added to complicate these developments, particularly schools. It is necessary to understand why some areas of high school affect adolescents because this would allow the improvement of the educational system. To do this, you need to understand how the adolescent brain works and analyze the culture of high school. The first step in understanding why the adolescent brain is influenced by school in this way is to actually understand how the adolescent brain works in general and the effects of this construction. Adolescent brain development reveals much about how the adolescent brain works and shows how the sexes differ at certain points in development. It is also necessary to examine the causes and reactions that adolescents have when going through different emotions. A big part of understanding how an adolescent brain works is knowing how the brain doesn't work compared to an adult brain. Another important aspect of understanding the adolescent brain is knowing the solutions to the problems mentioned above. The onset of puberty causes a wave of changes in children's brains and bodies to transform them into adults. Such changes include an overproduction of neurons, dendrites and synapses and the development of the prefrontal cortex. (http://files.eric.ed.gov/fulltext/EJ981198.pdf) These changes also proceed at different rates, as boys are able to process their motor and sensory functions earlier than girls, and girls are able to better control their impulses and create long-term plans before kids. However, impulse control and long-term planning are still among the newest skills developing in the field