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Free Testosterone Importance

Meaning

Free Testosterone Importance highlights the critical biological significance of the unbound, biologically active fraction of testosterone circulating in the bloodstream. While total testosterone measures both bound and unbound hormone, only the free fraction is capable of diffusing into target cells and binding to the androgen receptor to exert its physiological effects. This active hormone is responsible for maintaining muscle mass, bone density, libido, and cognitive function. Therefore, the free concentration is the most accurate clinical indicator of androgenic status and its direct impact on well-being.