What are life and death? Is it possible to understand their essence and give clear definitions? Countless books and articles have been devoted to trying to answer these intriguing questions. However, there are still no definite and generally accepted answers. The intrigue remains. And meanwhile, human attempts to vanquish death and achieve immortality continue apace.

This book is an attempt to answer the eternal questions about life and death by analyzing, synthesizing, and rethinking the known facts that characterize life. The material here should be of particular interest, as it...