Product Description: Why can’t teenagers get out of bed in the morning? How do bees tell the time? Why do some plants open and close their flowers at the same time each day? Why do so many people suffer the misery of jet lag? In this fascinating book, Russell Foster and Leon Kreitzman explain the significance of the biological clock, showing how it has played an essential role in evolution and why it continues to play a vitally important role in all living organisms...read more

The significance of the biological clock is explained in this study, which describes how biological clocks are embedded in genes and reset at sunrise and sunset every day, and reviews problems resulting from biological clocks, such as jet lag, seasonal affective disorder, and depression.