High salivary testosterone is linked to masculine male facial appearance. Evol Hum Behav. 2004;25(4):229–41.Penton-Voak IS, Chen JY. 2004. High salivary testosterone is linked to masculine male facial appearance in humans. Evol Hum Behav. 25:229-241....
The association between functioning of the immune system and perceived facial attractiveness might be also modulated by testosterone and cortisol. It has been suggested that testosterone has an immunosuppressive effect38,39,40but evidence to that effect is rather mixed41. It has thus been proposed th...
Approximately 30% of premature male babies are born with their testicles undescended They produce 20 to 30 times more testosterone than that of the average woman Testicular cancer is most common in men between the ages of 20 and 39 Your sperm develops from germ cells inside the testes, whic...
In this context, sex-specific selective pressures would have favored cooperation with the members of one’s group in combination with hostility towards outsiders. We investigate the role of developmental testosterone, as measured indirectly through static markers of prenatal testosterone (2D:4D digit ...
In temperate-zone birds, seasonal testosterone (T) profiles often vary among species with different mating systems. The trade-off hypothesis suggests that T levels in male birds represent a trade-off between additional mating effort, stimulated by high T, and paternal effort, inhibited by high T...
Mean circulating concentrations and seasonal changes in plasma testosterone over 3 years were similar in free-ranging and captive male armadillos. The high... M. N.,Czekala,K. J,... 被引量: 0发表: 2008年 Cryopreservation of intact testicular tissue from boys with cryptorchidism BACKGROUND: ...
The masculinization of the brain, reproductive tract and many other structures is critically dependent on the testicular hormone, testosterone (T). In many species, T circulates bound with high affinity to sex hormone-binding globulin (SHBG). This protein has a wide phylogenetic distribution and ...
In Experiment 4 8-OH-DPAT stimulated mounting behavior in female rats only when they were long-term treated with testosterone. In that condition also shortest latencies to first mount were found with 8-OH-DPAT treatment. 展开 关键词: 5-HT 1A 8-OH-DPAT Sexual behavior Masculine behavior ...
“bed” their wives, Asian Red Ginseng contains some of the most potent, natural compounds known to man, all of which have shown to help increase nitric oxide, relax blood vessels, and increase testosterone, leading to a more powerful and long-lasting sexual experience with a firmer, harder ...
The steroid testosterone is the major circulating sex hormone of the male and serves as the prototype for the androgens, the anabolic agents, and androgen antagonists. The endogenous androgens are biosynthesized from cholesterol in various tissues in the body; the majority of the circulating androgens...