This book was written as an answer for the numerous questions, got a professor Фрэнсис Э. Дженсен from parents, teachers and even from teenagers. All of them wanted to share the histories, to ask something and make an effort understand how to help their children - or to itself - to pass this perturbing, but difficult transitional period. Aim of book - to give practical advices to the parents, that they were able to support the children. Juvenile brain it is on the special stage of development. As this book will tell, for teenagers are inherent only to this age of weakness, but here they have extraordinarily strong internalss that will disappear as far as maturing.