A comprehensive guide to the biological mysteries that lie behind teenage behaviour Contrary to popular (parental) opinion teenagers are not the lazy unpleasant louts they occasionally appear to be During the teenage years the brain is undergoing its most radical & fundamental change since the age of two Nicola Morgan's carefully researched accessible & humorous examination of the ups & downs of the teenage brain has chapters dealing with powerful emotions the need for more sleep the urge to take risks the difference between genders & the reasons behind addiction or depression The revised edition of this classic book contains important new research including information on mirror neurons & their effect on the teenage brain