The brain undergoes major change during the teenage years
Until recently it was assumed that there was little further development in the brain after the end of childhood. However we now know that the brain continues to change and develop all through adolescence. In fact, there is more change in the brain during adolescence than at any other time in human development apart from the first three years of life.
This means that the teenage years are a critical period. What happens during this period has major implications for later development. Of course the brain does not develop in isolation. The brain and the environment interact, each influencing the other.
In this document I describe the changes that occur in the teenage brain. I show how these changes affect behaviour. Finally I outline how adults can use this Downoknowledge to encourage healthy brain development. The more adults understand what happens to the brain at this time, the more we can help teenagers manage this period of transition.