Why We Die shares the latest scientific understanding of what causes ageing and how we might prevent it. Ramakrishnan examines the cutting-edge efforts to extend the human lifespan by altering our natural biology, raising profound questions and unravelling mind-bending answers along the way. Does death serve a necessary biological purpose? What will it mean for us all if some people start living longer? And how can we increase our chances of living long, healthy and fulfilled lives?