Product Description: Esta obra apasionante aporta un enfoque revolucionario al campo de la psicologia practica revelando la verdadera dimension de una actividad en apariencia intrascendente: el juego. Jugar, dice Stuart Brown, medico, psiquiatra e investigador clinico, es una actividad nacida de millones de anos de evolucion, esencial para nuestra sociabilidad, adaptabilidad e inteligencia...read more

A leading authority on sleep discusses the essential benefits of sleep, such as psychological well-being, by revealing what actually occurs when we are sleeping; presents the seven principles of healthy and productive sleep; offers advice on sleep disorders and sleeping pills; and much more. Tour. (view table of contents)

Explores the powerful effects of sleep upon overall health, from the immune system to psychological wellbeing; explains the many dangers of sleep loss and deprivation, and teaches listeners how to discover how much sleep they really need, and how to get it. Reprint.