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  • Published: 4 April 2023
  • ISBN: 9780241529317
  • Imprint: Penguin Life
  • Format: Paperback
  • Pages: 336
  • RRP: $24.99

Life Time

The New Science of the Body Clock, and How It Can Revolutionize Your Sleep and Health




The Sunday Times bestselling guide to using the science of the body clock to create your optimum personal routine: sleep better, work better and feel better.

In the twenty-first century, we increasingly push our daily routines into the night, carrying out work, exercise and our social lives long after dark. But we have forgotten that our bodies are governed by a 24-hour biological clock which guides us towards the best time to sleep, eat and think.

In Life Time, Professor Russell Foster shares his life's work, taking us on a fascinating and surprising journey through the science of our body clocks. Using his own studies, as well as insights from an international community of sleep scientists and biologists studying circadian rhythms, he illustrates the surprising effects the time of day can have on our health: how a walk outside at dawn can ensure a better night's sleep, how eating after sundown can affect our weight, and the extraordinary effects the time we take our medication can have on our risk of life-threatening conditions, such as strokes. With knowledge of this astonishing science, we can get back into the rhythm, and live healthier, sharper lives.

  • Published: 4 April 2023
  • ISBN: 9780241529317
  • Imprint: Penguin Life
  • Format: Paperback
  • Pages: 336
  • RRP: $24.99

About the author

Russell Foster

Russell Foster is Professor of Circadian Neuroscience, Director of the Sleep and Circadian Neuroscience Institute (SCNi) and Head of the Nuffield Laboratory of Ophthalmology at the University of Oxford. He frequently contributes to newspapers, television and radio, including an appearance on Desert Island Discs, and has co-written four popular science books - this is his first as sole author.

Praise for Life Time

'A superlative guide to some of the most intriguing questions of human existence'

Bill Bryson, author of The Body: A Guide for Occupants

'Strongly recommended. You will sleep more deeply, be awake more fully, and live much more harmoniously with Russell Foster's help'

Anthony Seldon, author of The Impossible Office?: The History of the British Prime Minister