title: Influence of extreme factors on the ratio of cardiointervals in the structure of the cardiocycle
abstract: BACKGROUND: The proportion of the golden section, discovered by Pythagoras, is of great importance in the organization of wildlife. Since the golden proportion is one of the criteria for self-organization in living nature, it is natural to assume that this criterion can also be manifested in the work of the heart. The organization of the cardiac cycle is the result of a long evolution of a living organism in the direction of optimizing the structure and functions, ensuring life with minimal ener
journal: Pediatrician (St Petersburg)