The first book by Zviad Arabuli about the gymnastics HADU. The basis for it was an application for an invention, a patent for which was obtained in 1997. The book in print has gone through 17 editions and now has appeared in electronic form. Thousands of people managed to get to know her before the HADU Federation was created. Many of these people regained their health. A significant role in this played an accessible and convincing style of presentation. This is a new, unexpected, but absolutely valid view on human health and the way of its development. We hope reading will be both enjoyable and very informative.