Testosterone is the principal androgen responsible for male sexual development and reproductive function. Produced primarily in the testes, it regulates spermatogenesis, libido, muscle mass, bone density, red blood cell production, and mood stability.
Testosterone secretion follows a circadian rhythm and is regulated by the hypothalamic–pituitary–gonadal axis. Disruptions in this axis can lead to hypogonadism, characterized by fatigue, reduced sexual desire, infertility, and decreased muscle strength.
Beyond reproductive health, testosterone influences metabolic regulation and cardiovascular risk. Therefore, andrological evaluation of testosterone levels requires careful erotic interpretation, considering age, clinical symptoms, and comorbidities.
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