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。

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 raises the reproductive Health and fitness from the mother and father because their offspring are more likely to endure and reproduce. Paternal treatment boosts offspring survival because of increased entry to larger high-quality food items and decreased Actual physical and immunological threats.[89] This is particularly useful for people because offspring are dependent on mother and father for prolonged periods of time and mothers have rather limited inter-delivery intervals.[90]

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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）

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與其他類固醇激素一樣，睪酮是由膽固醇所衍生的。男性睪丸可以產生大量睪酮，女性卵巢、胎盤及男性或女性的腎上腺網狀帶亦會分泌少量的睾酮。

用于多种男性性激素不足的状况 隐睾症、性腺功能减退症、阳痿及男性更年期。

Nevertheless, %50 off now when you hear people use the time period “anabolic steroids” they are usually referring to synthetic (created within a lab) variants of testosterone which have been injected into The body.

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睾酮对成人的影响，对男性比较明显，但对男女两性都同样重要。随着年纪渐长，睾酮的分量下降，这些影响亦随之而减少。这些影响包括：[来源请求]

Whilst the extent of paternal care varies involving cultures, bigger expense in direct kid treatment has been noticed for being correlated with decrease regular testosterone degrees together with non permanent fluctuations.[ninety one] By way of example, fluctuation in testosterone degrees when a toddler is in distress has become discovered to get indicative of fathering designs.

概括地说，雄激素助长蛋白质的合成及拥有雄激素受体的组织的生长，睾酮的效用可以分为合成代谢及雄性化效应。合成代谢效应包括肌肉质量及力量的增长、增加骨质密度及强度、刺激线性生长及骨骼成熟等。雄性化效应则包括性器官的成熟（尤其是阴茎及胎儿阴囊的生成）、出生后（通常是在青春期）声线的转沉、胡须及体毛的生长等。这些效应一般都是男性的第二性征。

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