Physical cycle
23-day cycle
The physical cycle is conventionally assigned a 23-day period in biorhythm literature. Its torso point is a display metaphor and does not measure physiology or predict health.
Point 1 of 3 in Biorhythm Cycles
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Swoboda, Fliess, and Tomcshario biorhythm history (scholarly_modern)
Documents the historical 23-, 28-, and 33-day biorhythm proposals and their later treatment as pseudoscience; see Hines, chapter 5.