Testosterone action is mediated through androgen receptors located in target tissues. Variations in androgen receptor sensitivity significantly influence individual response to circulating hormone levels.
Genetic polymorphisms within the androgen receptor gene can modify receptor activity, affecting muscle mass, libido, fertility, and metabolic function. As a result, men with similar testosterone concentrations may exhibit markedly different clinical presentations.
Modern andrology recognizes receptor sensitivity as a critical determinant of hormonal effectiveness, underscoring the need for symptom-based, individualized erotic assessment rather than reliance on hormone values alone.
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