The book “Heart Rhythm and Type of Vegetative Regulation in Assessing the Level of Health of the Population and Functional Fitness of Athletes” is a unique study that combines the achievements of medicine, physiology and sports science. The team of authors, consisting of leading specialists in the field of cardiology and sports medicine, offers readers an in-depth analysis of the relationship between heart rhythm, vegetative regulation and general health. This work will become an indispensable source of knowledge for all those interested in health, physical activity and sports training. The book immerses the reader in a world where the heart rate becomes not just an indicator of physical activity, but also an important indicator of the general condition of the body. The authors examine in detail how different types of autonomic regulation affect a person's health and ability to exercise. Readers will learn about how stress, lifestyle and even emotional state can affect the work of the heart and, accordingly, the level of functional preparedness of athletes. This information will be especially useful for coaches, athletes and medical professionals seeking to optimize the training process and improve the health of their wards. The book will be interesting not only for professional athletes and coaches, but also for fans of an active lifestyle, as well as for those who just want to better understand their body and its reactions to physical activity. It will suit both young people striving for a healthy lifestyle, and more mature readers interested in the prevention of diseases and maintaining physical activity throughout life. The topics raised in the book cover a wide range of topics, from the biological basis of the heart to practical recommendations for health assessment and functional training. The authors emphasize the importance of an individual approach to each athlete and the need to take into account its unique physiological features. This makes the book relevant not only for professionals, but also for a wide audience striving for self-improvement and understanding of their body. The style of the authors is distinguished by scientific rigor, supported by many studies and practical examples. They skillfully combine theory with practice, which makes the material accessible and understandable to the reader. The book is packed with graphs, tables, and illustrations that help visualize the data presented and make reading more engaging. In addition, the team of authors has a lot of other works devoted to health and physical training .. Their experience and knowledge create additional value for readers who want to deepen their knowledge in this area. The book "Heart rhythm and type of vegetative regulation in assessing the level of health of the population and the functional preparedness of athletes" will be not only a useful guide, but also a real guide to the world of health and sports. If you are looking for information on how heart rate affects health, how to assess your physical fitness correctly, or want to learn more about autonomic regulation, this book will be a real find for you. It will open new horizons in the understanding of health and help you take a step towards a more active and healthy life.