Circadian and Metabolic Timing in Electrolyte Regulation: A Coupled Clock Model Linking Metabolic Load, Chloride Terrain Signals, and Cardiovascular Stress, Lantern of Sulfur, Concept A, v12, March 2026

This preprint introduces the regulatory timing architecture underlying the Lantern of Sulfur Concept A series. Human physiology operates through coordinated rhythmic systems rather than static control mechanisms. Circadian rhythm, metabolic signaling, hepatic bile acid activity, and hydration–electrolyte interpretation each follow cyclic regulatory patterns that must remain synchronized for metabolic and cardiovascular stability. When these regulatory clocks drift out of phase, physiologic signals may be misinterpreted across interacting systems. This paper proposes a simplified coupled clock model in which four regulatory layers—circadian rhythm, metabolic timing, hepatic bile regulation, and hydration–electrolyte interpretation—function as interacting physiologic oscillators. When synchronized, these systems reinforce metabolic and cardiovascular stability. When desynchronized by repeated physiologic loads (sleep loss, fasting, dehydration, ketogenic metabolic states, or bile signaling disruption), regulatory interpretation may shift within autonomic and renin–angiotensin–aldosterone system (RAAS) execution pathways. Within the Lantern of Sulfur framework, chloride-dominant acid–base patterns are interpreted as terrain signals of regulatory interpretation rather than primary electrolyte disease. Hyperchloremic non–anion gap metabolic acidosis (NAGMA) may therefore represent a downstream signal of regulatory desynchronization across metabolic, endocrine, and hydration signaling systems. Figures in this paper illustrate: • a coupled physiologic clock architecture governing metabolic and electrolyte regulation• a multi-load collision model describing how regulatory synchronization fails when physiologic loads converge• the Concept A series architecture, linking regulatory timing, metabolic load patterns (KICO), and downstream clinical terrain expression described in the HFrEF case study. This work forms the regulatory timing layer of the Lantern of Sulfur Concept A framework and provides a conceptual bridge between circadian biology, metabolic regulation, bile signaling, electrolyte interpretation, and cardiovascular stress. This preprint is part or a triad with Reversible HFrEF-The Pattern Five Specialties Missed, Lantern of Sulfur, Concept A, v12.3, March 2026, 10.5281/zenodo.18893393