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Biorhythm (pseudoscience) - Wikipedia

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The biorhythm theory is the pseudoscientific idea that peoples' daily lives are significantly affected by rhythmic cycles with periods of exactly 23, 28 and 33 days,[1][2][3] typically a 23-day physical cycle, a 28-day emotional cycle, and a 33-day intellectual cycle. The idea was developed by Wilhelm Fliess in the late 19th century, and was popularized in the United States in the late 1970s. The proposal has been independently tested and, consistently, no validity for it has been found. According to the notion of biorhythms, a person's life is influenced by rhythmic biological cycles that affect his or her ability in various domains, such as mental, physical, and emotional activity. These cycles begin at birth and oscillate in a steady (sine wave) fashion throughout life, and by modeling them mathematically, it is suggested that a person's level of ability in each of these domains can be predicted from day to day. It is built on the idea that the biofeedback chemical and hormonal secr

Biorhythm (pseudoscience) - Wikipedia Jump to content From Wikipedia, the free encyclopedia Dubious idea about physiological cycles This article is about the pseudoscientific beliefs. For the scientific study of biological cycles, see Chronobiology . Basic rhythm details Physical cycle 23 days – Circavigintan coordination strength well-being Emotional cycle 28 days – Circatrigintan creativity sensitivity mood perception awareness Intellectual cycle 33 days – Circatrigintan alertness analytical functioning logical analysis memory or recall communication The biorhythm chart when a person was bor

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