Chapter 5: Mental health services in Europe: the treatment gap.

Chapter 5 of the book "Mental health: facing the challenges, building solutions" is presented. It explores the mental health services in Europe, where most individuals with mental disorders do not receive treatment. It indicates that the burden owing to neuropsychiatric disorders is high and will increase due to the continent's ageing population. It implies that the size of the treatment gap should be taken to control mental disorders at the population level.