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Daily Rhythm Fidelity

Meaning

Daily Rhythm Fidelity denotes the degree of accuracy and robustness with which an individual’s internal biological rhythms, particularly the circadian rhythm, align with the 24-hour environmental cycle. High fidelity signifies a strong, precise, and stable temporal pattern in the oscillation of physiological markers, including hormone secretion, core body temperature, and sleep-wake cycles. Maintaining this precision is a fundamental indicator of robust metabolic and hormonal health, while low fidelity suggests internal desynchronization.