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Examples include circannual or annual cycles that govern migration or reproduction cycles in many plants and animals, or the human menstrual cycle. Ultradian rhythms , which are cycles shorter than 24 hours, such as the 90-minute REM cycle , the 4-hour nasal cycle , or the 3-hour cycle of growth hormone production.
The practice of consulting biorhythms was popularized in the 1970s by a series of books by Bernard Gittelson, including Biorhythm—A Personal Science, Biorhythm Charts of the Famous and Infamous, and Biorhythm Sports Forecasting. Gittelson's company, Biorhythm Computers, Inc., made a business selling personal biorhythm charts and calculators ...
Biorhythm may refer to: Biorhythm (pseudoscience) , developed by Wilhelm Fliess in the 19th century Biological rhythm , repetitive cycles that occur in biology, studied in the science of chronobiology
Chronobiology comes from the ancient Greek χρόνος (chrónos, meaning "time"), and biology, which pertains to the study, or science, of life. The related terms chronomics and chronome have been used in some cases to describe either the molecular mechanisms involved in chronobiological phenomena or the more quantitative aspects of ...
The society holds biennial meetings [2] and informal gatherings, and participates in peer-reviewed science and evidence-based policy making. [3] It is one of four prominent existing Chronology Research Societies [ 4 ] [ 5 ] and one of the 14 societies that make up The World Federation of Societies for Chronobiology . [ 6 ]
The journal was established in March 1986 as the official publication of the Society for Research on Biological Rhythms with Benjamin Rusak as first editor-in-chief; he served from 1986 to 1994.
For example, in basketball, in order to anticipate the game one must recognize rhythmic patterns of other players and perform actions calibrated to these movements. "The rhythm of a game of basketball emerges from the rhythm of individuals, the rhythm among team members, and the rhythmic contrasts between opposing teams". [ 6 ]
A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).