One of the most important problems of modern science is the search for new reserves aimed at increasing the efficiency of educational, work and training activities by using biological rhythms. The temporal sequence of interaction of various functional systems of the body with the environment, developed in the course of evolution, contributes to the harmonious coordination of various biological processes and ensures the normal functioning of the entire organism. This reveals the important adaptive value of biorhythms for the body's vital functions. However, certain principles and provisions of biorhythms in sports are insufficiently highlighted and scientifically justified, but without a doubt, scientific research in this direction brings the expected practical result. We also mention the problems of psychophysiology, the solution of which largely depends on the success of using biorhythms to improve the efficiency of sports and students learning activities [1]. The dynamics of the circadian rhythmicity of the psychophysiological functions is reflected in the volume and intensity of the applied training and competition tasks, as well as in the performance recovery after performing them. Three biorhythms are known that significantly influence human performance: physical, emotional and intellectual ones.