Can you resist everything except temptation? In a hedonistic age full of distractions, it's hard to possess willpower - or in fact even understand why we should need it. Yet it's actually the most important factor in achieving success and a happy life, shown to be more significant than money, looks, background or intelligence. This book reveals the secrets of self-control. Here Roy Baumeister, one of the world's most esteemed and influential psychologists, and journalist John Tierney, turn this notion on its head. They show us that willpower is like a muscle that can be strengthened with practice and improved over time. The latest laboratory work shows that self-control has a physical basis to it and so is dramatically affected by simple things such as eating and sleeping - to the extent that a life-changing decision may go in different directions depending on whether it's made before or after lunch. Based on years of psychological research and filled with practical advice, this book will teach you how to gain from self-control without pain, and discover the very real power in willpower. The results are nothing short of life-changing.

羅伊•鮑邁斯特 佛羅裏達州立大學心理學教授，發錶450多篇科學論文，一直是世界上論文引用率最高的心理學傢之一。

約翰•蒂爾尼 《紐約時報》科學專欄作傢，作品曾經獲得美國科學促進會和美國物理聯閤會頒發的奬章。