At all around week seven in utero, the sexual intercourse-relevant gene within the Y chromosome initiates the event on the testicles in male infants. The testicles create testosterone.

肾上腺髓质： 肾上腺素、去甲肾上腺素 － 肾上腺皮质： 醛固酮、皮质醇、脱氢表雄酮

This increases the reproductive Health and fitness on the mom and dad for the reason that their offspring usually tend to endure and reproduce. Paternal treatment boosts offspring survival as a result of greater use of increased good quality foodstuff and diminished physical and immunological threats.[89] This is especially valuable for individuals considering the fact that offspring are depending on mom and dad for extended periods of time and moms have reasonably small inter-start intervals.[90]

: Paket ligger kvar i boxen i tre dagar varefter det skickas %50 off now tillbaka till Instabox terminal. Inom tio dagar har du som kund möjlighet att beställa en ny utkörning until samma eller ett annat paketskåp.

维持性欲及勃起次数（滥用补充剂可能会导致疼痛性阴茎异常勃起、和性欲亢进）

英语-中文（简体） phrase #beta Beta /beta #preferredDictionaries ^picked name /picked /preferredDictionaries

提神及提升体能（对照睾酮缺乏患者体能较佳，但与正常人无异，刻意补充对体能不会有显著的增加）

肾上腺髓质： 肾上腺素、去甲肾上腺素 － 肾上腺皮质： 醛固酮、皮質醇、脱氢表雄酮

過度超量或是長期的使用睪酮，會導致睪丸及男性生殖器萎縮，且導致永久性的陽痿。如果為女性，則會出現乳房萎縮、刺激毛髮過度生長、陰蒂肥大貌似小陰莖和长胡子等種種男性化現象。

成年男子不論服用或施打多少睪酮都無法再次促使陰莖的成長與發育（相反的，錯誤的使用激素，將可能造成體內原生激素紊亂，將無法自行生成使睪丸及陰莖萎縮，衍生出其他生殖系統疾病）

If your Health care company suspects maybe you have irregular testosterone degrees, They might buy one or more tests, like:

除自然作用之外，雄性激素亦可作为药物使用，如雄激素替代疗法和促进肌肉生长。值得注意的是，成年男性無論施打多少劑量的雄激素都无助生殖器再次發育成長，反而容易增长生殖疾病风险。

This information requirements far more trusted medical references for verification or relies also greatly on Key sources. Be sure to review the contents from the report and insert the suitable references If you're able to.

Sexual arousal and masturbation in women create tiny will increase in testosterone concentrations.[65] The plasma amounts of assorted steroids drastically raise just after masturbation in Adult males and the testosterone levels correlate to those concentrations.[sixty six]