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Physiological Variance

Meaning

Physiological Variance refers to the normal, measurable differences in biological parameters, such as hormone concentrations, metabolic rates, and receptor sensitivities, that exist between individuals and within the same individual over time. In clinical practice, recognizing this variance is crucial for defining an individual’s optimal health range, moving beyond population-based reference ranges to a personalized benchmark for endocrine function. It underscores the uniqueness of every human system.