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πŸ“Š Biorhythm Calculator

Based on the sine wave model: sin(2Ο€t / cycle_length) where t = days since birth

πŸ“š Scientific References

β€’ Fliess, W. (1899) β€” Biorhythm theory: 23/28/33 day cycles
β€’ Czeisler, C.A. et al. (1999) Science 284:2177 β€” Human circadian period ~24.18h
β€’ Roenneberg, T. et al. (2007) Current Biology β€” Munich Chronotype Questionnaire
β€’ Breus, M. (2016) The Power of When β€” Lion/Bear/Wolf/Dolphin chronotypes
β€’ Borbely, A.A. (1982) β€” Two-process model of sleep regulation
β€’ Pruessner et al. β€” Cortisol Awakening Response (CAR) curve
β€’ Monk, T.H. et al. (1992) β€” Post-lunch dip mechanism
β€’ Van Cauter, E. et al. (2000) JAMA β€” Age-related sleep changes