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概括地說，雄激素助長蛋白質的合成及擁有雄激素受體的組織的生長，睪酮的效用可以分為合成代謝及雄性化效應。合成代謝效應包括肌肉質量及力量的增長、增加骨質密度及強度、刺激線性生長及骨骼成熟等。雄性化效應則包括性器官的成熟（尤其是陰莖及胎兒陰囊的生成）、出生後（通常是在青春期）聲線的轉沉、鬍鬚及體毛的生長等。這些效應一般都是男性的第二性徵。
[86] Married Guys who interact in bond-servicing activities including paying out the working day with their spouse or child haven't any different testosterone amounts compared to instances when they do not engage in these kinds of things to do. Collectively, these results advise which the existence of aggressive pursuits in lieu of bond-upkeep functions is a lot more applicable to adjustments in testosterone stages.[87]
This increases the reproductive Physical fitness in the mother and father because their offspring usually tend to endure and reproduce. Paternal care raises offspring survival because of enhanced entry to larger high quality food items and diminished Bodily and immunological threats.[89] This is especially valuable for people because offspring are depending on mom and dad for extended periods of time and mothers have comparatively brief inter-delivery intervals.[90]
Your hypothalamus and pituitary gland Handle the quantity of testosterone your gonads (testicles or ovaries) generate and release.
It’s not likely — and tough to tell — that an Grownup assigned male at start has greater-than-standard amounts of testosterone.
AIS is really a ailment of sex differentiation. It affects male fetuses because they create during the uterus, and also teenage sexual improvement all through puberty.
It has been theorized that brain masculinization is happening since no significant adjustments are discovered in other elements of the body.[27] The male brain is masculinized via the aromatization of testosterone into estradiol,[28] which crosses the blood–brain barrier and enters the male Mind, While female fetuses have α-fetoprotein, which binds the estrogen to ensure that female brains will not be influenced.[29]
在发育中的睾丸里的性索中，来自中胚层的上皮细胞成为塞尔托利氏细胞，辅助精子的形成。
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。
Testosterone can also merely exaggerate or amplify present aggression; as an example, chimpanzees who obtain testosterone increases develop into a lot more intense to chimps reduced than them in the social Seen on Youtube hierarchy, but will even now be submissive to chimps higher than them. Testosterone Therefore won't make the chimpanzee indiscriminately aggressive, but as a substitute amplifies his pre-present aggression in the direction of lessen-ranked chimps.[129]
层次（皮膚 · 肉膜 · 精索外筋膜 · 提睾肌／提睾肌筋膜 · 精索内筋膜 · 会阴缝）
In non-human primates, it may be that testosterone in puberty stimulates sexual arousal, which allows the primate to significantly seek out sexual experiences with females and thus makes a sexual choice for females.
睾酮# · 双氢睾酮 · 氟羟甲基睾酮 · 甲二氢睾酮 · 甲睾酮 · 另见同化類固醇
Synthetic testosterone is the primary drug of masculinizing hormone therapy, which is a gender-affirming treatment that someone AFAB uses to produce the secondary sexual intercourse attributes affiliated with becoming assigned male at delivery (AMAB).