The precise adjustment of the interconnected feedback loops between the nervous system and the endocrine system to achieve optimal set-points for hormone production and receptor responsiveness. Calibration seeks to correct functional dysregulation within the HPA, HPG, and HPT axes. This ensures appropriate physiological adaptation across the lifespan.
Origin
Derived from engineering principles applied to biological control systems, “calibration” implies restoring accuracy to measuring and regulatory instruments. In this context, the axes are the instruments whose output must align with biological need. It is a term signifying fine-tuning of the master regulatory system.
Mechanism
Calibration involves identifying the specific point of failure, such as an overly sensitive cortisol receptor or a sluggish pituitary response to GnRH. Interventions then modulate the inputs—whether through nutrient support, targeted rhythm correction, or gentle trophic stimulation—to bring the entire axis output back into alignment with healthy physiological parameters. This process restores dynamic range to the system.
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