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A circaseptan rhythm[1] is a cycle consisting of 7 days in which many biological processes of life resolve.[2]

See also[edit]


  1. ^ "circaseptan". Retrieved 30 March 2017 – via The Free Dictionary. 
  2. ^ Macey, Samuel L. (1994). Encyclopedia of time. Taylor & Francis. p. 113. ISBN 0-8153-0615-6. 

Further reading[edit]

  • Halberg F et al. 1965: "Spectral resolution of low-frequency, small-amplitude rhythms in excreted 17-ketosteroid: probable androgen-induced circaseptan desynchronization". Acta Endocrinol. Suppl. 103, 5-54
  • Kaiser H, Cornelissen G, Halberg F 1990: "Palaeochronobiology circadian rhythms, gauges of adaptive Darwinian evolution: about 7-day circaseptan rhythms, gauges of integrative evolution". In: Chronobiology - its role in clinical medicine (eds. Hayes DK, Pauly JE, Reiter RJ) Wiley-Liss Inc., New York, pp. 755–762
  • Meyer-Rochow, VB; Brown, PJ (1998). "Possible natural circaseptan rhythm in the beach beetle Chaerodes trachyscelides". Acta Neurobiol Exp. 58: 287–290. 
  • Uezono K et al. 1987: Circaseptan rhythm in sodium and potassium excretion in salt-sensitive and salt-resistant 'Dahl rats'". Progr Clin Biol Res 227A, 297-307
  • Cornélissen, G; Watson, D; Mitsutake, G; Fišer, B; Siegelová, J; Dušek, J; Vohlídalová, Svaèinová H; Halberg, F (2005). "MAPPING OF CIRCASEPTAN AND CIRCADIAN CHANGES IN MOOD". Scr Med (Brno). 78: 89–98. PMC 2577283Freely accessible. PMID 18985163. 
  • Four abstracts of studies on circaseptan rhythms