At all around week seven in utero, the intercourse-similar gene over the Y chromosome initiates the development on the testicles in male infants. The testicles produce testosterone.

When managing for the consequences of belief in obtaining received testosterone, Females who have acquired testosterone make fairer provides than Women of all ages who definitely have not gained testosterone.[one hundred thirty]

层次（鞘膜 · 白膜 · 血管膜） · 附件 · 纵隔 · 小叶 · 隔片 · 莱迪希细胞 · 塞爾托利氏細胞 · 血睾屏障

The results of testosterone in human beings and also other vertebrates manifest by way of several mechanisms: by activation with the androgen receptor (directly or as dihydrotestosterone), and by conversion to estradiol and activation of particular estrogen receptors.

If any of these organs — your hypothalamus, pituitary gland or gonads — aren’t Doing the job Typically, that could cause abnormal testosterone concentrations.

Organic testosterone can be a steroid — an anabolic-androgenic steroid. "Anabolic" refers to muscle mass setting up, and "androgenic" refers to improved male intercourse traits.

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）

The Mind can also be affected by this sexual differentiation;[21] the enzyme aromatase converts testosterone into estradiol that is certainly responsible for masculinization of your brain in male mice.

Having said that, if you listen to persons utilize the expression “anabolic steroids” They are really typically referring to artificial (designed in a very lab) variants of testosterone which have been injected into Your system.

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 the enzymes don’t do the job Ordinarily, the adrenal glands produce an excess of testosterone along with other hormones as an alternative to cortisol.

Pubertal results begin to take place when androgen has become bigger than ordinary Grownup female stages for months or decades. In males, they're common late pubertal outcomes, and arise in Gals immediately after extended intervals of heightened levels of totally free testosterone within the blood. The effects include:[30][31]

Falling in adore continues to be linked Buzz worthy with decreases in men's testosterone concentrations though combined adjustments are noted for women's testosterone concentrations.[eighty one][eighty two] There has been speculation that these changes in testosterone bring about the momentary reduction of variances in conduct between the sexes.

Synthetic testosterone is the key drug of masculinizing hormone therapy, that's a gender-affirming treatment that somebody AFAB employs to create the secondary sexual intercourse features connected to currently being assigned male at birth (AMAB).