Life Time

Outline

Life Time (2022) explains how the body’s internal clock controls sleep, energy, mood, and health. Russell G. Foster, a leading expert on circadian rhythms, shows how shift work, artificial light, and irregular routines disrupt this clock and increase the risk of illness. He offers practical, science-based advice on light, sleep, meal timing, and daily habits to help readers feel and function better.

• Your body has an internal clock that controls sleep, energy, mood, and health, not just when you feel tired.
• Shift work, artificial light, and irregular routines can disrupt that clock and raise the risk of illness.
• Light, sleep, meal timing, and daily habits are the practical levers for working with your body clock.
• The advice in the book is based on science and meant to be used in everyday life.
• Aligning your daily timing with your body clock can help you feel and function better.

Russell G. Foster is a British neuroscientist and professor of circadian neuroscience at the University of Oxford, where he founded and directs a research institute on sleep and body clocks. His discoveries about how the eye detects light to set the body clock have been widely recognised. His books include Circadian Rhythms and Life Time.