Engrossing questions throng science writer Sue Armstrong's round-up of research on the biology of ageing. A rich, timely study for the era of 'global ageing'.

Nature

A fine introduction to the research and controversies about how we age.

Times Literary Supplement

Armstrong, a British science and health writer, presents, in crack Michael Lewis style, the high points of aging research along with capsule biographies of the main players.

The New Yorker

Complex, nuanced and cautious, yet it suggests we are on the brink of a revolution.

The Sunday Times

Ms Armstrong doesn't pretend that there is any one answer to the question of why we age as we do. The science she presents is a grab bag of divergent theories, each championed by a scientific subspeciality.

Wall Street Journal

As a seventy-five-year-old man I felt oddly rejuvenated by this book. Try it yourself!

Professor Steve Jones