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Functional Hormone Levels

Meaning

Functional Hormone Levels refer to the concentration of hormones that are actively signaling within the body’s tissues and are reflective of the hormone’s true biological effect, often correlating more closely with clinical symptoms than standard total serum levels. This concept extends beyond mere concentration to include the critical factors of free hormone availability, receptor sensitivity, and the efficiency of metabolic conversion into active metabolites. Optimal functional levels are those that support peak health and physiological function.