Welcome to a revolution in the science of you. Recent and dramatic breakthroughs in our understanding of the body will profoundly change the experience of being human in the coming century. Already they are opening up boundary-breaking possibilities for intervention at every level, from our brains and genes to our microbiomes and immune systems. These will confer unprecedented powers over health, childhood development, our cognitive and physical abilities, and affect every aspect of how we live our lives and think about ourselves. As the secrets of our bodies are revealed, we all will face previously unthinkable choices with consequences we have yet to understand. Imagine knowing years in advance the precise likelihood of developing specific cancers, thanks to a bespoke understanding of every cell in your body; following a diet and health regime tailored to your microbiome; continuous monitoring of your body's workings and well-being; taking drugs that improve your cognition and help to acquire new skills; manipulating the genes of your unborn children to eliminate disease or even enhance their capabilities. Written by an award-winning scientist at the forefront of this work, The Secret Body shows how these radical and disconcerting possibilities have been made real thanks to the ingenious technologies and decades-long collaborations of scientists worldwide. A gripping drama of discovery and a landmark account of this dawning revolution, it presents a vision of the human body of dizzying complexity, wonder and possibility.