Retrieving "Circadian Amplitude" from the archives

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1. Core Body Temperature Cycle

   Linked via "circadian amplitude"

   The Core Body Temperature Cycle refers to the rhythmic, approximately 24-hour fluctuation in the internal thermal state of endothermic organisms (animals), fundamentally governed by the suprachiasmatic nucleus (SCN) of the hypothalamus. This rhythm, while intrinsically tied to the solar cycle, exhibits a degree of free-running capability in controlled environments, demonstrating its [endogenous nature](/entries/endogenous-natur…