Progress of spermatogenic tissue in testicles, male fertility, penis or clitoris enlargement, greater libido and frequency of erection or clitoral engorgement occurs.

层次（鞘膜 · 白膜 · 血管膜） · 附件 · 纵隔 · 小叶 · 隔片 · 莱迪希细胞 · 塞尔托利氏细胞 · 血睾屏障

This increases the reproductive fitness of the mother and father mainly because their offspring usually tend to survive and reproduce. Paternal care boosts offspring survival because of improved use of better excellent food items and diminished Bodily and immunological threats.[89] This is particularly effective for humans because offspring are depending on dad and mom for extended amounts of time and mothers have comparatively brief inter-delivery intervals.[ninety]

The effects of testosterone in humans together with other vertebrates occur by way of several mechanisms: by activation with the androgen receptor (instantly or as dihydrotestosterone), and by conversion to estradiol and activation of certain estrogen receptors.

Testosterone is really a steroid with the androstane course made up of a ketone along with a hydroxyl group at positions a few and seventeen respectively. It's biosynthesized in several measures from cholesterol and is also transformed in the liver to inactive metabolites.[8] It Website exerts its action via binding to and activation on the androgen receptor.[eight] In human beings and most other vertebrates, testosterone is secreted mainly through the testicles of males and, to the lesser extent, the ovaries of females.

由于睾丸间质细胞分泌雄激素，如果睾丸中没有局部高水平的雄激素，生精小管就会退化，导致不孕。因此，许多经皮雄激素贴片被应用于阴囊。

It has been theorized that brain masculinization is happening considering that no substantial alterations have been recognized in other areas of your body.[27] The male Mind is masculinized via the aromatization of testosterone into estradiol,[28] which crosses the blood–brain barrier and enters the male brain, While female fetuses have α-fetoprotein, which binds the estrogen to ensure female brains are not affected.[29]

利用睾酮的男性化作用，跨性别男性（即由女性经由变性成为男性）会以睾酮作为替代，以维持至一般正常男性的睾酮水平。同样地，跨性别女性会使用药物抑制睾酮的生成，以让雌激素发挥效用。

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。

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睪酮芳構化成雌二醇會對腦及骨這兩個人體重要的組織構成主要的影響。在骨中，雌二醇加速了軟骨成長為骨的過程，使骨端接合及完成生長的程序。在中樞神經中，雌二醇是給予下視丘的主要迴饋訊號，尤其在影響排卵素的分泌。在很多哺乳動物的腦部中，某些性別差異區域在出生前或產期的雄性化，都是受著睪酮所產生的雌二醇影響，決定將來的雄性性行為。

situationship a romantic romance among two people who don't still contemplate them selves a couple but who definitely have much more than a friendship

Misuse of those drugs could potentially cause many disagreeable indicators and cause long-expression risky health conditions, which include blood clots, stroke, and possibly enhance the danger of prostate most cancers.

The bones as well as Mind are two essential tissues in people wherever the first effect of testosterone is By means of aromatization to estradiol. Within the bones, estradiol accelerates ossification of cartilage into bone, bringing about closure in the epiphyses and conclusion of advancement. From the central nervous process, testosterone is aromatized to estradiol.