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

    Bill Bryson, author of The Body: A Guide for Occupants
  • A comprehensive manifesto for living in harmony with our body clocks, penned by someone who has devoted his career to studying them.

    Financial Times
  • 'Who knew that everything, I mean everything to do with our health is influenced by our circadian rhythms and sleep: physical and mental health, immune functioning, disease, fertility, relationships, energy, emotions, mood, work life, family life and happiness. This book tells you what to do to keep within your natural rhythm and how to do it. A perfect blend of humour, science and pure genius - what more could you want? Consider it an emergency to read'

    Ruby Wax
  • 'Who knew our body clocks determined so much of our health, happiness, and lifespan? Renowned neuroscientist Russell Foster has spent four decades shining a light into the dimly understood and fascinating field of human biological rhythms. This book crisply summarizes what he's discovered. I learned so much'

    James Nestor, author of Breath
  • 'This book has the answers to everything you've ever wondered about your natural rhythms, from sleep to eating to exercise. Excellent, engaging and evidence-based, it's a brilliant guide to an aspect of our health we don't think about enough'

    Claudia Hammond, author of The Art of Rest
  • '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
  • 'Almost all of us would benefit from this revelatory guide by a world-leading expert on circadian neuroscience' (Editor's Choice)

    The Bookseller
  • 'Russell Foster's writing on circadian rhythms and sleep opens a new scientific frontier. Understanding the effect of sleep on our brains is the key to improved performance and happiness. Sleep is to the brain what diet is to the body'

    Rt Hon Penny Mordaunt, Minister for Trade Policy, UK
  • 'Whatever I do in my day, or wherever I have travelled to or from, Russell Foster's guiding words and advice on healthy sleep, regular rhythms and the importance of daylight resound in my head. This is a must read for anyone wishing a more balanced existence'

    Dora Loewenstein, President of BrainWaves, and a Vice-President of Save the Children

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