At the time of puberty , androgen levels increase dramatically in males .
Androgens mediate the development of masculine secondary sexual characteristics as well as the activation of spermatogenesis and fertility and masculine behavioral changes such as gynephilia and increased sex drive .
At the time of puberty , androgen levels increase dramatically in males , and androgens mediate the development of masculine secondary sexual characteristics as well as the activation of spermatogenesis and fertility and masculine behavioral changes such as gynephilia and increased sex drive .