Adverse reactions to medical drugs cause thousands of deaths in the UK every year. Statins, aspirin and other drugs are taken en masse, whether they help or harm. Our one-size-fits-all approach to medicine is primitive. Who we are – our age, gender, size, ethnic group, environmental conditions, our very individuality – matters to our health. Shouldn't our medicine be tailored to our differences? With an introduction by Dr Angeli Mehta explaining the British perspective, this book explores these groundbreaking advances and the coming sea change in how we detect and treat disease. It also discusses the other issues we will face: Who will have access to the highly sensitive data? Who will fund research when mass prescription drugs are finished? This important new book will help us wake up to taking charge of our health in a completely new era.