title: [Notion of A.L. Chizhevsky of rhythm and present-day foundations of space biorhythmology].
abstract: Space biorhythmology is a space medicine discipline that came into being at the very beginning of Russian piloted cosmonautics for the purposes of scientific substantiation of the principles of managing human work and rest cycle during space flight. The article states the link between space biorhythmology and the Chizhevsky fundamental ideas of periodicity as a feature of the universe key to stability of natural phenomena in time and space. The authors discuss main results of experimental and theoretical researches in the field of space biorhythmology in the ground laboratory and spaceflight conditions.
mesh_terms: D000337:Aerospace Medicine; D018480:Astronauts; D006801:Humans; D010507:Periodicity; D012426:Russia; D013026:Space Flight