Regarding men's sexual ability, I believe it is difficult for anyone to give an accurate answer. Some people even believe that being able to orgasm in bed means they have strong sexual abilities. But what exactly does sexual ability mean? Today, I will introduce it to you. Men's Adam's apple and chest hair, women's breasts and fat distribution are called secondary sexual characteristics, which refer to the differences between the two sexes other than the genitals. They are manifestations of the physiological differences between men and women, but they cannot be equated with sexual ability. Secondary sexual characteristics are mainly caused by the differences in sex hormones secreted by male and female gonads (testicles in males and ovaries in females). Testosterone is the most important and abundant sex hormone in men's blood. During the embryonic period, testosterone determines the differentiation of sexual organs; during puberty, testosterone causes the individual to further develop towards male sexual characteristics and continues to play an important metabolic function throughout life. For women, it is estrogen that causes gender differences. Although estrogen and androgen have important influences on the development of sexual characteristics, their effects on various organs of the body are different. Taking chest hair as an example, the sensitivity of hair follicles to androgens determines the growth of body hair. Some people's hair follicles are very sensitive, and their armpit hair and pubic hair below the pubic bone will grow a lot even if the androgen concentration is low. However, some people's chest hair follicles are not sensitive to androgens, so they have less or even no chest hair. What is sexual performance during sex? Today, in addition to being a symbol of marriage commitment, finger length is also seen as a sign of masculinity, especially the length of the ring finger, especially during the fetal period. Comprehensive studies in various regions of the world have confirmed that the absolute length of a man's ring finger is generally longer than the absolute length of his index finger. Men and women are two relative forms of sex, but in essence they are intrinsically linked. The morphological differences between the sexes are also reflected in the fingers. Some studies suggest that it may be even stronger in the morphology of the fingertips than in the length of the fingers. So, in an anthropological sense, none of this is accidental. New evidence from researchers in the UK and Canada suggests that cavemen led far more competitive and promiscuous lives than we do today. But what might surprise you even more is the method the researchers used to make their new discovery: measuring the length ratios of fingers! The study was published in the Proceedings of the Royal Society. It draws on a well-known and controversial indicator of social behavior: the relative length ratio of the index finger to the ring finger. If the ring finger is longer than the index finger, it means higher levels of male hormones in the prenatal environment. That is, during fetal development in the womb, male hormones such as testosterone can affect finger length. High hormone levels increase the relative length of the fourth finger to the second finger, which is reflected in the measurement as a decrease in food intake. The corresponding result is that the baby will later be more aggressive and promiscuous. |
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