American teenagers

At all times it was believed that adolescence is the most restless. Even 2300 years ago, Aristotle wrote: "Nature cherishes youth, as a drunken wine." Shepherd in "Winter's Tale," Shakespeare said: "It would be good, if only there was no age between ten and twenty-three years - if this gap could sleep, but then they only things that pregnant girls, elderly abuse , robbing and start fights. " Freud saw the peak of adolescence as a psychosocial painful conflict, and Erik Erikson, a psychologist and a follower of Freud called this the age of the most troublesome of all the crises of identity. In short, adolescence - always a problem. Recent studies in behaviorism suggest that the adolescent brain is not an immature version of the adult brain, but on the contrary, he thinks a certain way, and perfectly adapted and directed at solving problems and testing of adolescents. While some animals need only a couple of years to reach adult age, a mammal such as a person is required to complete '24 full maturity.

(Total 26 photos)

The team captains for the wrestling school senior Claire and Jordan, which still occur, go to a party November 11, 2011 (Photo by Kitra Cahana / Reportage by Getty Images)

Seventeen high school student Dandilion Olsen in the reflection mirrors her parents' car, Austin, Texas, October 13, 2012 (Photo by Kitra Cahana / Reportage by Getty Images)

Kelly Carson (center) gives the light a girlfriend during a party at a friend's house October 16, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

19-year-old Justin Casey Schwab, along with her boyfriend take care of their 14-month-old baby November 10, 2010 After Justin left the school for the second year, she began to walk a lot and at one time even lived on the street. (Photo by Kitra Cahana / Reportage by Getty Images)

Chantal Anderson School senior Curry and Zachery Florz retired during a party in the house in honor of Zachery winning football team, November 11, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

19-year-old Cass Tilly draws graffiti under a bridge in Austin, Texas, December 10, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Young skateboarders Alden Wilson (center), James Cameron and Jason Rodriguez, Castle Hill on the ride - a secret place known among the youth of Austin, which shows most of the city, December 12, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Morgan Moore (front) and Kathryn Davies on training team to support Anderson High School before playing with high school Akins October 21, 2010 Anderson School team won with a score of 48-12. (Photo by Kitra Cahana / Reportage by Getty Images)

Members of the high school football team, Tim Anderson Hunt, Malik Stewart and Max Delin warm up before a game Nov. 12, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Chuck Metula with the flag of the United States at the time of departure from the field support team before the game begins November 12, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

At night, high school students go to the city to leave their graffiti wherever possible. (Photo by Kitra Cahana / Reportage by Getty Images)

Former team player Anderson, and now their coach, Colin Moore, dressed in their uniforms, the team gives farewell speech before the game. In this farewell, he remembered the former players of the football team, who are now serving in Iraq and Afghanistan, and would give anything for it to be here and play football. (Photo by Kitra Cahana / Reportage by Getty Images)

Star football team, Anderson School 18-year-old Connor Sheehan during the execution of the national anthem before the game November 12, 2010 Connor, played in several positions and is a key player in the team. In the future he is going to go into professional football. (Photo by Kitra Cahana / Reportage by Getty Images)

Olivia La Torre kisses her boyfriend during a party at his home October 20, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Dikristofalo Taylor looks at his piercing a week ago in the mirror, while her friend and passes inspection body piercing, October 11, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Eighteen Spencer OLoklin on their holiday spending time with his father while hunting with a bow at the deer and wild boar. For 4 days did not kill anyone Spencer, and his father shot a small boar, which Spencer later skinned under the supervision of his father. (Photo by Kitra Cahana / Reportage by Getty Images)

High school student high school, Elizabeth Anderson bull at the fair in Austin, October 9, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Seventeen school student Dandilion Anderson (Amy) Olson sneaking through the fence of the church, cutting off the path to the house, after which she will ride a canoe with his sister and her friend, October 19, 2010

Taylor and Sidney Westlake Dikristofalo Brown lay down to rest after a long night partying October 16, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Club party outdoors Dayglo was not like any one of those went to Austin Brown (center). Jets fluorescent paint sprayed spectators from head to toe January 30, 2011 g, and the ultra-violet light illuminates them. (Photo by Kitra Cahana / Reportage by Getty Images)

18-year-old Jasmine Wright is on the front porch, where she was at a party with friends January 1, 2011, Austin, Texas. (Photo by Kitra Cahana / Reportage by Getty Images)

High school student Anderson shows a variety of parkour stunts during the time change October 25, 2010 Parkour, or free movement, it is a sport developed in France, which moves in the city engaged in a free manner, using only your body, jumping over fences and climbing on buildings. (Photo by Kitra Cahana / Reportage by Getty Images)

High school students, Brian Campbell and Jae Cho shot on their mobile phones Hugto Clay, who hold in captivity during a training bout. The boys organize a weekly fight club Brian home after school. (Photo by Kitra Cahana / Reportage by Getty Images)

Anastashya Marie Kipp pretends that aims at his mother with a pistol in the kitchen at their home Dec. 22, 2010 (Photo by Kitra Cahana / Reportage by Getty Images)

Chirlidersh football team, "Troyan" High School Anderson, Adeline Cooper, rides on his team against the Bowie High School October 29, 2010 in Austin, Texas. Anderson School team won with a score of 25-20. (Photo by Kitra Cahana / reportage by Getty Images)

Anastashya Marie Kipp and his girlfriend are choosing what to wear to a party the night December 22, 2010 for a good 20 minutes they choose, and so far nothing they have not come out. (Photo by Kitra Cahana / Reportage by Getty Images)