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Physiological Testosterone Range

Meaning

Physiological Testosterone Range defines the specific concentration window for circulating testosterone (total and free) that supports optimal health, function, and well-being across the lifespan for a given individual phenotype. This range is distinct from the broad reference ranges often provided by standard laboratories, emphasizing functional sufficiency over mere statistical normality. Maintaining levels within this functional window is essential for preserving lean mass, bone density, and libido. We aim for dynamic equilibrium within this biologically relevant spectrum.