How has the way we spend our time changed over the last fifty years? Are we really working more, sleeping less and addicted to our phones? What does this mean for our health, wealth and happiness? Everything we do happens in time and it feels like our lives are busier than ever before. Yet a detailed look at our daily activities reveals some surprising truths about the social and economic structure of the world we live in. This book delves into the unrivalled data collection and expertise of the Centre for Time Use Research to explore fifty-five years of change and what it means for us today.

Sleep is one of the most important aspects of our life, health and longevity and yet it is increasingly neglected in twenty-first-century society, with devastating consequences: every major disease in the developed world - Alzheimer's, cancer, obesity, diabetes - has very strong causal links to deficient sleep. In this book, the first of its kind written by a scientific expert, Professor Matthew Walker explores twenty years of cutting-edge research to solve the mystery of why sleep matters. Looking at creatures from across the animal kingdom as well as major human studies, Why We Sleep delves into everything from what really happens during REM sleep to howcaffeine and alcohol affect sleep and why our sleep patterns change across a lifetime, transforming our appreciation of the extraordinary phenomenon that safeguards our existence.