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Both the theoretical underpinning and the practical scientific verification of biorhythm theory are lacking. Without those, biorhythms became just another pseudoscientific claim that people are willing to accept without required evidence. Those pushing biorhythm calculators and books on a gullible public are guilty of making fraudulent claims.
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
The nasogenital theory was briefly quite popular in late 19th century medical circles, but within a decade disappeared from the medical literature. [6] Most scientists who have studied the question believe that the biorhythms theory has no more predictive power than chance [7] and consider the concept an example of pseudoscience. [8] [9] [10] [11]
The best studied rhythm in chronobiology is the circadian rhythm, a roughly 24-hour cycle shown by physiological processes in all these organisms.The term circadian comes from the Latin circa, meaning "around" and dies, "day", meaning "approximately a day."
A zeitgeber (/ ˈ (t) s aɪ t ɡ eɪ b ər, ˈ z aɪ t-/ (T)SYTE-gay-bər, ZYTE-, German: [ˈtsaɪtˌɡeːbɐ]) is any external or environmental cue that entrains or synchronizes an organism's biological rhythms, usually naturally occurring and serving to entrain to the Earth's 24-hour light/dark and 12-month cycles.
Biorhythm theory – an attempt to predict various aspects of a person's life through simple mathematical cycles. The theory was developed by Wilhelm Fliess in the late 19th century and was popularized in the United States in the late 1970s. It was described as pseudoscience.
The neuroscience of rhythm refers to the various forms of rhythm generated by the central nervous system (CNS). Nerve cells, also known as neurons in the human brain are capable of firing in specific patterns which cause oscillations.
The Society for Research on Biological Rhythms (SRBR) is a learned society and professional association headquartered in the United States created to advance the interests of chronobiology in academia, industry, education, and research.