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** THE SUNDAY TIMES BESTSELLER **

GIVE THEM THE GIFT OF A GOOD NIGHT'S SLEEP WITH THIS GUIDE TO THE SCIENCE OF THE BODY CLOCK!

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

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. New science has proven that living out of sync with this clock is not only disrupting our sleep, but leaving us more vulnerable to infection, cancer, obesity, type 2 diabetes, heart disease and mental illness.

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
- the extraordinary effects the time we take our medication can have on our risk of life-threatening conditions, such as strokes

In the modern world, we have neglected an essential part of our biology. But with knowledge of this astonishing science, we can get back into the rhythm, and live healthier, sharper lives.