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  2. Biorhythm (pseudoscience) - Wikipedia

    en.wikipedia.org/wiki/Biorhythm_(pseudoscience)

    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, [2] [3] [4] typically a 23-day physical cycle, a 28-day emotional cycle, and a 33-day intellectual cycle.

  3. Biorhythm - Wikipedia

    en.wikipedia.org/wiki/Biorhythm

    Biorhythm may refer to: Biorhythm (pseudoscience), developed by Wilhelm Fliess in the 19th century; Biological rhythm, repetitive cycles that occur in biology ...

  4. Wilhelm Fliess - Wikipedia

    en.wikipedia.org/wiki/Wilhelm_Fliess

    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]

  5. Biological rhythm - Wikipedia

    en.wikipedia.org/wiki/Biological_rhythm

    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."

  6. List of topics characterized as pseudoscience - Wikipedia

    en.wikipedia.org/wiki/List_of_topics...

    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.

  7. Akashic records - Wikipedia

    en.wikipedia.org/wiki/Akashic_records

    In the religion of Theosophy and the spiritual movement called Anthroposophy, the Akashic records are believed by Theosophists to be a compendium of all universal events, thoughts, words, emotions, and intent ever to have occurred in the past, present, or future in terms of all entities and life forms, not just human.

  8. Chronobiology - Wikipedia

    en.wikipedia.org/wiki/Chronobiology

    Overview, including some physiological parameters, of the human circadian rhythm ("biological clock").. Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, such as their adaptation to solar- and lunar-related rhythms. [1]

  9. Zeitgeber - Wikipedia

    en.wikipedia.org/wiki/Zeitgeber

    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.