Over the past 100 years, enormous changes have occurred in medicine. Today surgeons work miracles. Pharmacology, anesthesiology, diagnostics, prosthetics have advanced far... But the more advanced treatment methods become, the tools of scientific knowledge of the human body become refined, the more secrets and mysteries are revealed to the eyes of scientists. Here are just a few of them. What is intuition? How does the influenza virus mutate? What is the nature of vision and hearing? What is lethargy? Is immortality possible? Does telegony exist? Is cloning people possible? The next book in the series tells about these and many other secrets of medical science.