Biological Rhythms
Circadian Rhythm
1.16e-5 Hz
Cosmic Octave Color
Derived visible color (701 nm)
Display swatch #c1392b
Octave-shifted: 24.33 Hz (+21 octaves)
EstablishedPhysical Measurement
Evidence Level
Established
Source Count
1
Last Reviewed
March 23, 2026
Directly measured, standardized, or well-supported in mainstream scientific or technical literature.
This entry documents a measurable or standardized frequency reference. The atlas is a research and practice guide, not a medical diagnostic instrument.
Review the evidence modelThe ~24-hour biological clock governing sleep-wake cycles, hormone release, body temperature, and metabolic processes. Driven by the suprachiasmatic nucleus (SCN) in the hypothalamus.
Period
1.0 days
Wavelength
29569.0 km
Claim Type
Physical Measurement
Cosmic Octave Color
Derived visible color (701 nm) · #c1392b
Source
Chronobiology
Sources
Body Rhythm and Clinical Sciences
1 atlas references
Used for heart, breath, circadian, and other biological rhythm references.
Cardiology, physiology, chronobiology, and cell biology references.
bodycircadiansleepcycle