Land of Justin Bieber: open door barn, dude! (AP)

NEW YORK – a hoodie lost here, a backpack forgotten there. In the case of Justin Bieber, a flight opened on the Grammy red carpet!

What is with teens and the fog of brain?

Parenting tweens and teens can sometimes feel like kindergarten redux, except the attitudes of adolescents are shiny and their missing and broken stuff costs more. In addition, their manners are atrocious, some do not like or use deodorant and shower may forget to brush my teeth.

And while nobody ever suggest that 16-year-old Bieber grooming is nothing less than impeccable (including her hair known to be perfect), lived a classic, although minor wardrobe malfunction Sunday teen as he posed for pictures in his tux.

There was no reveal. His pants covered all but was one of those moments that sets the parents thinking: why is my baby jumping through life on another planet? When he is going to land back on Earth?

The short answer may be later rather than earlier, at least when it comes to their brains.

Once, many scientists believe that the human brain has achieved full development by the age of 12 years. But based on improved scanning of brain research indicates that the coordination of certain functions continues to come together through the early 20s, said Lawrence Steinberg, Professor of Psychology at Temple University.

"Isn't that a teenager is forgetting," he said. "It is more like they're drawn immediate reward situation is much more than adults and are much less likely to think ahead and think about the future. The future may be only an hour later. "

Steinberg hears regularly from their parents as the author recently reviewed "you and your teenager: the essential guide for ages 10-25."

"These days I almost as many questions from parents about occupy 20 somethings like I do on teenagers," he said.

Aimee Stern in Silver Spring, MD, is facing a full black hole powered by his daughter of 11 years and 15-year-old son. "We had more lost phones, house keys, winter coats," he said. "I'm seeing better now in the second year of high school. It has been replaced by total obnoxiousness. "

Do you think of MOM and dad are a match for the brain of adolescents scattered? Stern relaxed after digging in latest research itself as part of his work to write a guide about teens and alcohol use.

"It was such a relief to learn that I wasn't crazy, and oversight of my children, it was just a normal part of development of the brain," said Stern.

Brain fog is also a life force in the home of Marc Pitman Waterville, Maine. He has a simple request for his son 11 years: close the door of the bedroom. "He'll go to close the door, forget about road and come back to the living room, after leaving the door open".

Second on the list of dads PIX: "using the tools at the table, not his hands".

Pitman is based on the auction house as repeating "of common-sense instructions.

Shelly Walker has a different strategy. She is by paying for the stuff that loses his daughter of 11 years. "In a week that he lost one shoe and his iPod Touch to school. She understands the value of money ".

Sally Treadwell in Boone, NC, has two boys, 5 and 14. As a Walker, she does not pay for the replacement of all things lost, broken, destroyed or submerged, but she is not ready to blame your brain.

"I think the idea of teens, being incapable of hung on stuff because of their developing brain is a very modern idea," he said. "There were five of us in our family. We didn't have much money and what we had we hung on. Part of growing is learning to be responsible for yourself. The world is not disposable.

Representatives for Bieber did not respond immediately to a request for comment.

View the original article here