What is happiness? How can you tell if you are happy? How important are love, sex, money, and family relationships? Can happiness last? Is there a blueprint for happiness? Is unhappiness a terminal illness? Is there a 'happiness gene'? This book, by one of Britain's leading psychologists, is based fairly and squarely on scientific evidence, and provides realistic insights into these questions. Michael Eysenck is Professor of Psychology at Royal Holloway University of London. He is the author of numerous academic and popular books and articles, including Mindwatching and Cognitive Psychology: A Student's Handbook.